Subtract 32/36 from 21/16
1st number: 1 5/16, 2nd number: 32/36
21/16 - 32/36 is 61/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 36 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
21/16 = 21 × 9/16 × 9 = 189/144 - Likewise, for the 2nd fraction, since 36 × 4 = 144,
32/36 = 32 × 4/36 × 4 = 128/144 - Subtract the two like fractions:
189/144 - 128/144 = 189 - 128/144 = 61/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/16-32/36 21/16-64/36 21/32-32/36 21/16-32/72 63/16-32/36 21/16-96/36 21/48-32/36 21/80-32/36