Subtract 35/63 from 7/20, Solve 7/20

Subtract 35/63 from 7/20

7/20 - 35/63 is -37/180.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 20 × 63 = 1260,
7/20 = 7 × 63/20 × 63 = 441/1260
Likewise, for the 2nd fraction, since 63 × 20 = 1260,
35/63 = 35 × 20/63 × 20 = 700/1260
Subtract the two like fractions:
441/1260 - 700/1260 = 441 - 700/1260 = -259/1260
After reducing the fraction, the answer is -37/180

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