Subtract 27/49 from 63/18, Solve 3 9/18

Subtract 27/49 from 63/18

1^st number: 3 9/18, 2^nd number: 27/49

63/18 - 27/49 is 289/98.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 49 is 882

Next, find the equivalent fraction of both fractional numbers with denominator 882
For the 1st fraction, since 18 × 49 = 882,
63/18 = 63 × 49/18 × 49 = 3087/882
Likewise, for the 2nd fraction, since 49 × 18 = 882,
27/49 = 27 × 18/49 × 18 = 486/882
Subtract the two like fractions:
3087/882 - 486/882 = 3087 - 486/882 = 2601/882
After reducing the fraction, the answer is 289/98
In mixed form: 293/98

MathStep (Works offline)

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