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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 addition
Original question: 1/18+2/21
Solution:
1 18 | + | 2 21 |
Divide the least common multiple 126 by the denominator 18 of the first addend to get 7
Multiply the numerator 1 and denominator 18 of the first fraction by 7
Then divide the least common multiple 126 by the denominator 21 of the second addend to get 6
Multiply the numerator 2 and denominator 21 of the second fraction by 6
| = | 7 126 | + | 12 126 |
| = | 19 126 |