Subtract 75/63 from 84/49, Solve 1 35/49

Subtract 75/63 from 84/49

1^st number: 1 35/49, 2^nd number: 1 12/63

84/49 - 75/63 is 11/21.

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,
84/49 = 84 × 9/49 × 9 = 756/441
Likewise, for the 2nd fraction, since 63 × 7 = 441,
75/63 = 75 × 7/63 × 7 = 525/441
Subtract the two like fractions:
756/441 - 525/441 = 756 - 525/441 = 231/441
After reducing the fraction, the answer is 11/21

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad