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Mathematical calculation：
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 fraction calculations
[ 1/1 Fraction calculation ]
Question type: Fractional subtraction
Original question: 4/5-5/8
Solution:
4 5 | － | 5 8 |
Divide the least common multiple 40 by the denominator 5 of the minuend to get 8
Multiply the numerator 4 and denominator 5 of the subtracted number by 8
Then divide the least common multiple 40 by the denominator 8 of the subtraction to get 5
Multiply the subtracted numerator 5 and denominator 8 by 5 at the same time
| = | 32 40 | － | 25 40 |
| = | 7 40 |