Subtract 27/20 from 35/63, Solve 35/63

Subtract 27/20 from 35/63

1^st number: 35/63, 2^nd number: 1 7/20

35/63 - 27/20 is -143/180.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 63 × 20 = 1260,
35/63 = 35 × 20/63 × 20 = 700/1260
Likewise, for the 2nd fraction, since 20 × 63 = 1260,
27/20 = 27 × 63/20 × 63 = 1701/1260
Subtract the two like fractions:
700/1260 - 1701/1260 = 700 - 1701/1260 = -1001/1260
After reducing the fraction, the answer is -143/180

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