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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: 16/25-4/7
Solution:
Divide two fractions with defferent denominators:The denominators of two fractions are 25 and 7 respectively,their least common multiple is 175
Divide the least common multiple 175 by the denominator 25 of the minuend to get 7
Multiply the numerator 16 and denominator 25 of the subtracted number by 7
Then divide the least common multiple 175 by the denominator 7 of the subtraction to get 25
Multiply the subtracted numerator 4 and denominator 7 by 25 at the same time
Calculation result:
☆1 fraction calculations
[ 1/1 Fraction calculation ]
Question type: Fractional subtraction
Original question: 16/25-4/7
Solution:
16 25 | － | 4 7 |
Divide the least common multiple 175 by the denominator 25 of the minuend to get 7
Multiply the numerator 16 and denominator 25 of the subtracted number by 7
Then divide the least common multiple 175 by the denominator 7 of the subtraction to get 25
Multiply the subtracted numerator 4 and denominator 7 by 25 at the same time
| = | 112 175 | － | 100 175 |
| = | 12 175 |