Subtract 84/63 from 3/49, Solve 3/49

Subtract 84/63 from 3/49

1^st number: 3/49, 2^nd number: 1 21/63

3/49 - 84/63 is -187/147.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441

Next, find the equivalent fraction of both fractional numbers with denominator 441
For the 1st fraction, since 49 × 9 = 441,
3/49 = 3 × 9/49 × 9 = 27/441
Likewise, for the 2nd fraction, since 63 × 7 = 441,
84/63 = 84 × 7/63 × 7 = 588/441
Subtract the two like fractions:
27/441 - 588/441 = 27 - 588/441 = -561/441
After reducing the fraction, the answer is -187/147

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