Subtract 18/32 from 15/8
1st number: 1 7/8, 2nd number: 18/32
15/8 - 18/32 is 21/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 32 is 32
Next, find the equivalent fraction of both fractional numbers with denominator 32 - For the 1st fraction, since 8 × 4 = 32,
15/8 = 15 × 4/8 × 4 = 60/32 - Likewise, for the 2nd fraction, since 32 × 1 = 32,
18/32 = 18 × 1/32 × 1 = 18/32 - Subtract the two like fractions:
60/32 - 18/32 = 60 - 18/32 = 42/32 - After reducing the fraction, the answer is 21/16
- In mixed form: 15/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8-18/32 15/8-36/32 15/16-18/32 15/8-18/64 45/8-18/32 15/8-54/32 15/24-18/32 15/8-18/96 75/8-18/32 15/8-90/32 15/40-18/32 15/56-18/32