Subtract 15/32 from 21/2
1st number: 10 1/2, 2nd number: 15/32
21/2 - 15/32 is 321/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 32 is 32
Next, find the equivalent fraction of both fractional numbers with denominator 32 - For the 1st fraction, since 2 × 16 = 32,
21/2 = 21 × 16/2 × 16 = 336/32 - Likewise, for the 2nd fraction, since 32 × 1 = 32,
15/32 = 15 × 1/32 × 1 = 15/32 - Subtract the two like fractions:
336/32 - 15/32 = 336 - 15/32 = 321/32 - In mixed form: 101/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2-15/32 21/2-30/32 21/4-15/32 21/2-15/64 63/2-15/32 21/2-45/32 21/6-15/32 21/2-15/96 21/2-75/32 21/10-15/32 21/14-15/32