Subtract 2/14 from 84/4, Solve 21 0/4

Subtract 2/14 from 84/4

1^st number: 21 0/4, 2^nd number: 2/14

84/4 - 2/14 is 146/7.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28

Next, find the equivalent fraction of both fractional numbers with denominator 28
For the 1st fraction, since 4 × 7 = 28,
84/4 = 84 × 7/4 × 7 = 588/28
Likewise, for the 2nd fraction, since 14 × 2 = 28,
2/14 = 2 × 2/14 × 2 = 4/28
Subtract the two like fractions:
588/28 - 4/28 = 588 - 4/28 = 584/28
After reducing the fraction, the answer is 146/7
In mixed form: 206/7

MathStep (Works offline)

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