Subtract 9/14 from 18/8, Solve 2 2/8

Subtract 9/14 from 18/8

1^st number: 2 2/8, 2^nd number: 9/14

18/8 - 9/14 is 45/28.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 14 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 8 × 7 = 56,
18/8 = 18 × 7/8 × 7 = 126/56
Likewise, for the 2nd fraction, since 14 × 4 = 56,
9/14 = 9 × 4/14 × 4 = 36/56
Subtract the two like fractions:
126/56 - 36/56 = 126 - 36/56 = 90/56
After reducing the fraction, the answer is 45/28
In mixed form: 117/28

MathStep (Works offline)

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