Subtract 7/15 from 18/8
1st number: 2 2/8, 2nd number: 7/15
18/8 - 7/15 is 107/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
18/8 = 18 × 15/8 × 15 = 270/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
7/15 = 7 × 8/15 × 8 = 56/120 - Subtract the two like fractions:
270/120 - 56/120 = 270 - 56/120 = 214/120 - After reducing the fraction, the answer is 107/60
- In mixed form: 147/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8-7/15 18/8-14/15 18/16-7/15 18/8-7/30 54/8-7/15 18/8-21/15 18/24-7/15 18/8-7/45 90/8-7/15 18/8-35/15 18/40-7/15 18/8-7/75 18/8-49/15 18/56-7/15