Subtract 35/20 from 3/63, Solve 3/63

Subtract 35/20 from 3/63

1^st number: 3/63, 2^nd number: 1 15/20

3/63 - 35/20 is -143/84.

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,
3/63 = 3 × 20/63 × 20 = 60/1260
Likewise, for the 2nd fraction, since 20 × 63 = 1260,
35/20 = 35 × 63/20 × 63 = 2205/1260
Subtract the two like fractions:
60/1260 - 2205/1260 = 60 - 2205/1260 = -2145/1260
After reducing the fraction, the answer is -143/84

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