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On line Solution of Monovariate Equation：
Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
It supports equations that contain mathematical functions.
Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
It supports equations that contain mathematical functions.
Current location：Equations > Monovariate Equation > The history of univariate equation 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: 1/20+1/21
Solution:
Divide two fractions with defferent denominators:The denominators of two fractions are 20 and 21 respectively,their least common multiple is 420
Divide the least common multiple 420 by the denominator 20 of the first addend to get 21
Multiply the numerator 1 and denominator 20 of the first fraction by 21
Then divide the least common multiple 420 by the denominator 21 of the second addend to get 20
Multiply the numerator 1 and denominator 21 of the second fraction by 20
Calculation result:
☆1 fraction calculations
[ 1/1 Fraction calculation ]
Question type: Fractional addition
Original question: 1/20+1/21
Solution:
1 20 | + | 1 21 |
Divide the least common multiple 420 by the denominator 20 of the first addend to get 21
Multiply the numerator 1 and denominator 20 of the first fraction by 21
Then divide the least common multiple 420 by the denominator 21 of the second addend to get 20
Multiply the numerator 1 and denominator 21 of the second fraction by 20
| = | 21 420 | + | 20 420 |
| = | 41 420 |