Subtract 3/24 from 18/7, Solve 2 4/7

Subtract 3/24 from 18/7

1^st number: 2 4/7, 2^nd number: 3/24

18/7 - 3/24 is 137/56.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 7 × 24 = 168,
18/7 = 18 × 24/7 × 24 = 432/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
3/24 = 3 × 7/24 × 7 = 21/168
Subtract the two like fractions:
432/168 - 21/168 = 432 - 21/168 = 411/168
After reducing the fraction, the answer is 137/56
In mixed form: 225/56

MathStep (Works offline)

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