Subtract 5/84 from 49/15, Solve 3 4/15

Subtract 5/84 from 49/15

1^st number: 3 4/15, 2^nd number: 5/84

49/15 - 5/84 is 449/140.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
49/15 = 49 × 28/15 × 28 = 1372/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
5/84 = 5 × 5/84 × 5 = 25/420
Subtract the two like fractions:
1372/420 - 25/420 = 1372 - 25/420 = 1347/420
After reducing the fraction, the answer is 449/140
In mixed form: 329/140

MathStep (Works offline)

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