Mathematics
         
语言:中文    Language:English
Fractions calculation:
    Enter the fractions calculation formula directly and click the "Next" button to get the calculation answer.
    It does not support mathematical functions (including trigonometric functions) and can only calculate the addition, subtraction, multiplication and division of two fractions. The fraction line is indicated by "/".
    Current location:Mathematical operation > History of fraction calculation > Answer

    Overview: 7 questions will be solved this time.Among them
           ☆7 fraction calculations

[ 1/7 Fraction calculation ]
    Question type: Fractional subtraction
    Original question: 7/8-3/10

    Solution:
     
7
8
 -  
3
10
    Divide two fractions with defferent denominators:The denominators of two fractions are 8 and 10 respectively,their least common multiple is 40
    Divide the least common multiple 40 by the denominator 8 of the minuend to get 5
    Multiply the numerator 7 and denominator 8 of the subtracted number by 5
    Then divide the least common multiple 40 by the denominator 10 of the subtraction to get 4
    Multiply the subtracted numerator 3 and denominator 10 by 4 at the same time
    = 
35
40
 -  
12
40
Calculation result:
    =
23
40

[ 2/7 Fraction calculation ]
    Question type: Fractional subtraction
    Original question: 7/20-3/40

    Solution:
     
7
20
 -  
3
40
    Divide two fractions with defferent denominators:The denominators of two fractions are 20 and 40 respectively,their least common multiple is 40
    Divide the least common multiple 40 by the denominator 20 of the minuend to get 2
    Multiply the numerator 7 and denominator 20 of the subtracted number by 2
    Then divide the least common multiple 40 by the denominator 40 of the subtraction to get 1
    Multiply the subtracted numerator 3 and denominator 40 by 1 at the same time
    = 
14
40
 -  
3
40
Calculation result:
    =
11
40

[ 3/7 Fraction calculation ]
    Question type: Fractional addition
    Original question: 3/4+5/7

    Solution:
     
3
4
 +  
5
7
    Divide two fractions with defferent denominators:The denominators of two fractions are 4 and 7 respectively,their least common multiple is 28
    Divide the least common multiple 28 by the denominator 4 of the first addend to get 7
    Multiply the numerator 3 and denominator 4 of the first fraction by 7
    Then divide the least common multiple 28 by the denominator 7 of the second addend to get 4
    Multiply the numerator 5 and denominator 7 of the second fraction by 4
    = 
21
28
 +  
20
28
    Calculation result:
    =
41
28

[ 4/7 Fraction calculation ]
    Question type: Fractional subtraction
    Original question: 5/9-5/12

    Solution:
     
5
9
 -  
5
12
    Divide two fractions with defferent denominators:The denominators of two fractions are 9 and 12 respectively,their least common multiple is 36
    Divide the least common multiple 36 by the denominator 9 of the minuend to get 4
    Multiply the numerator 5 and denominator 9 of the subtracted number by 4
    Then divide the least common multiple 36 by the denominator 12 of the subtraction to get 3
    Multiply the subtracted numerator 5 and denominator 12 by 3 at the same time
    = 
20
36
 -  
15
36
Calculation result:
    =
5
36

[ 5/7 Fraction calculation ]
    Question type: Fractional addition
    Original question: 3/4+1/5

    Solution:
     
3
4
 +  
1
5
    Divide two fractions with defferent denominators:The denominators of two fractions are 4 and 5 respectively,their least common multiple is 20
    Divide the least common multiple 20 by the denominator 4 of the first addend to get 5
    Multiply the numerator 3 and denominator 4 of the first fraction by 5
    Then divide the least common multiple 20 by the denominator 5 of the second addend to get 4
    Multiply the numerator 1 and denominator 5 of the second fraction by 4
    = 
15
20
 +  
4
20
    Calculation result:
    =
19
20

[ 6/7 Fraction calculation ]
    Question type: Fractional subtraction
    Original question: 7/6-1/3

    Solution:
     
7
6
 -  
1
3
    Divide two fractions with defferent denominators:The denominators of two fractions are 6 and 3 respectively,their least common multiple is 6
    Divide the least common multiple 6 by the denominator 6 of the minuend to get 1
    Multiply the numerator 7 and denominator 6 of the subtracted number by 1
    Then divide the least common multiple 6 by the denominator 3 of the subtraction to get 2
    Multiply the subtracted numerator 1 and denominator 3 by 2 at the same time
    = 
7
6
 -  
2
6
Calculation result:
    =
5
6

[ 7/7 Fraction calculation ]
    Question type: Fractional subtraction
    Original question: 10/11-2/3

    Solution:
     
10
11
 -  
2
3
    Divide two fractions with defferent denominators:The denominators of two fractions are 11 and 3 respectively,their least common multiple is 33
    Divide the least common multiple 33 by the denominator 11 of the minuend to get 3
    Multiply the numerator 10 and denominator 11 of the subtracted number by 3
    Then divide the least common multiple 33 by the denominator 3 of the subtraction to get 11
    Multiply the subtracted numerator 2 and denominator 3 by 11 at the same time
    = 
30
33
 -  
22
33
Calculation result:
    =
8
33


>>注:本次最多计算 7 道题。




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