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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 "/".
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: 1 questions will be solved this time.Among them
☆1 fraction calculations
[ 1/1 Fraction calculation ]
Question type: Fractional subtraction
Original question: 1/28-1/60
Solution:
1 28 | － | 1 60 |
Divide the least common multiple 420 by the denominator 28 of the minuend to get 15
Multiply the numerator 1 and denominator 28 of the subtracted number by 15
Then divide the least common multiple 420 by the denominator 60 of the subtraction to get 7
Multiply the subtracted numerator 1 and denominator 60 by 7 at the same time
| = | 15 420 | － | 7 420 |
| = | 8 420 |
| = | 2 |
| = | 2 105 |