Subtract 21/64 from 21/6
1st number: 3 3/6, 2nd number: 21/64
21/6 - 21/64 is 203/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 64 is 192
Next, find the equivalent fraction of both fractional numbers with denominator 192 - For the 1st fraction, since 6 × 32 = 192,
21/6 = 21 × 32/6 × 32 = 672/192 - Likewise, for the 2nd fraction, since 64 × 3 = 192,
21/64 = 21 × 3/64 × 3 = 63/192 - Subtract the two like fractions:
672/192 - 63/192 = 672 - 63/192 = 609/192 - After reducing the fraction, the answer is 203/64
- In mixed form: 311/64
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-21/64 21/6-42/64 21/12-21/64 63/6-21/64 21/6-63/64 21/18-21/64 21/30-21/64 21/42-21/64