Subtract 1/9 from 21/32
21/32 - 1/9 is 157/288.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 9 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 32 × 9 = 288,
21/32 = 21 × 9/32 × 9 = 189/288 - Likewise, for the 2nd fraction, since 9 × 32 = 288,
1/9 = 1 × 32/9 × 32 = 32/288 - Subtract the two like fractions:
189/288 - 32/288 = 189 - 32/288 = 157/288
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/32-1/9 21/32-2/9 21/64-1/9 21/32-1/18 63/32-1/9 21/32-3/9 21/96-1/9 21/32-1/27 21/32-5/9 21/32-1/45 21/32-7/9 21/32-1/63