Overview: 7 questions will be solved this time.Among them
           ☆3 arithmetic calculations
           ☆2 fraction calculations
           ☆1 integer calculations
           ☆1 convert the decimals to fractions

[1/7 Formula]
    Work: Calculate the value of equation 2.375*8+2.375*9+2.375*3 .
    Question type: Mathematical calculation
    Solution:
          2.375*8+2.375*9+2.375*3
        =19+2.375*9+2.375*3
        =19+21.375+2.375*3
        =19+21.375+7.125
        =40.375+7.125
        =47.5
    Answer:2.375*8+2.375*9+2.375*3=47.5
[ 2/7 Fraction calculation ]
    Question type: Fractional subtraction
    Original question: 1/8-2/9
    Solution:

1 8

－

2 9

    Divide two fractions with defferent denominators:The denominators of two fractions are 8 and 9 respectively,their least common multiple is 72
    Divide the least common multiple 72 by the denominator 8 of the minuend to get 9
    Multiply the numerator 1 and denominator 8 of the subtracted number by 9
    Then divide the least common multiple 72 by the denominator 9 of the subtraction to get 8
    Multiply the subtracted numerator 2 and denominator 9 by 8 at the same time

=

9 72

－

16 72

Calculation result:

=

-

7 72

[3/7 Formula]
    Work: Calculate the value of equation 7+7/7+7/7*7+7/7*7/7+7/7*7/7*7 .
    Question type: Mathematical calculation
    Solution:
          7+7/7+7/7*7+7/7*7/7+7/7*7/7*7
        =7+1+7/7*7+7/7*7/7+7/7*7/7*7
        =7+1+1*7+7/7*7/7+7/7*7/7*7
        =7+1+7+7/7*7/7+7/7*7/7*7
        =7+1+7+1*7/7+7/7*7/7*7
        =7+1+7+7/7+7/7*7/7*7
        =7+1+7+1+7/7*7/7*7
        =7+1+7+1+1*7/7*7
        =7+1+7+1+7/7*7
        =7+1+7+1+1*7
        =7+1+7+1+7
        =8+7+1+7
        =15+1+7
        =16+7
        =23
    Answer:7+7/7+7/7*7+7/7*7/7+7/7*7/7*7=23
[4/7 Formula]
    Work: Calculate the value of equation 68*35+68*44+68*53+68*18 .
    Question type: Mathematical calculation
    Solution:
          68*35+68*44+68*53+68*18
        =2380+68*44+68*53+68*18
        =2380+2992+68*53+68*18
        =2380+2992+3604+68*18
        =2380+2992+3604+1224
        =5372+3604+1224
        =8976+1224
        =10200
    Answer:68*35+68*44+68*53+68*18=10200
[ 5/7 Fraction calculation ]
    Question type: Fractional subtraction
    Original question: 1/2-1/3
    Solution:

1 2

－

1 3

    Divide two fractions with defferent denominators:The denominators of two fractions are 2 and 3 respectively,their least common multiple is 6
    Divide the least common multiple 6 by the denominator 2 of the minuend to get 3
    Multiply the numerator 1 and denominator 2 of the subtracted number by 3
    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

=

3 6

－

2 6

Calculation result:

=

1 6

[ 6/7 Digital analysis ]
    Work: Convert decimal 2.65 to fractional form.
    Question type: Convert decimal to fraction
    Solution:

2.65=

53 20

    *Note: Convert finite decimal to fraction.
[7/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 3/8
    Solution:
    3/8 = 0 ··· ··· 3
    Column vertical calculation:

		0
8	丿	3
		0
		3

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>>注：本次最多计算 7 道题。

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