Overview: 4 questions will be solved this time.Among them
☆4 fraction calculations
[ 1/4 Fraction calculation ]
Question type: Fractional addition
Original question: 1/2+3/7 Solution:
Divide two fractions with defferent denominators:The denominators of two fractions are 2 and 7 respectively,their least common multiple is 14
Divide the least common multiple 14 by the denominator 2 of the first addend to get 7
Multiply the numerator 1 and denominator 2 of the first fraction by 7
Then divide the least common multiple 14 by the denominator 7 of the second addend to get 2
Multiply the numerator 3 and denominator 7 of the second fraction by 2 Calculation result: [ 2/4 Fraction calculation ]
Question type: Fractional subtraction
Original question: 3/7-1/4 Solution:
Divide two fractions with defferent denominators:The denominators of two fractions are 7 and 4 respectively,their least common multiple is 28
Divide the least common multiple 28 by the denominator 7 of the minuend to get 4
Multiply the numerator 3 and denominator 7 of the subtracted number by 4
Then divide the least common multiple 28 by the denominator 4 of the subtraction to get 7
Multiply the subtracted numerator 1 and denominator 4 by 7 at the same timeCalculation result: [ 3/4 Fraction calculation ]
Question type: Fractional multiplication
Original question: 6/11×1/3 Solution:
Divide the numerator of the first fraction and the denominator of the second fraction by 3
Calculation result: [ 4/4 Fraction calculation ]
Question type: Fractional division
Original question: 2/5÷8/9 Solution:
Calculation result: The calculation result is reduced by 2Your problem has not been solved here? Please go to the Hot Problems section!