Subtract 27/49 from 30/15, Solve 2 0/15

Subtract 27/49 from 30/15

1^st number: 2 0/15, 2^nd number: 27/49

30/15 - 27/49 is 71/49.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735

Next, find the equivalent fraction of both fractional numbers with denominator 735
For the 1st fraction, since 15 × 49 = 735,
30/15 = 30 × 49/15 × 49 = 1470/735
Likewise, for the 2nd fraction, since 49 × 15 = 735,
27/49 = 27 × 15/49 × 15 = 405/735
Subtract the two like fractions:
1470/735 - 405/735 = 1470 - 405/735 = 1065/735
After reducing the fraction, the answer is 71/49
In mixed form: 122/49

MathStep (Works offline)

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