Subtract 7/12 from 84/24, Solve 3 12/24

Subtract 7/12 from 84/24

1^st number: 3 12/24, 2^nd number: 7/12

84/24 - 7/12 is 35/12.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 12 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 24 × 1 = 24,
84/24 = 84 × 1/24 × 1 = 84/24
Likewise, for the 2nd fraction, since 12 × 2 = 24,
7/12 = 7 × 2/12 × 2 = 14/24
Subtract the two like fractions:
84/24 - 14/24 = 84 - 14/24 = 70/24
After reducing the fraction, the answer is 35/12
In mixed form: 211/12

MathStep (Works offline)

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