Subtract 75/64 from 21/10
1st number: 2 1/10, 2nd number: 1 11/64
21/10 - 75/64 is 297/320.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 10 × 32 = 320,
21/10 = 21 × 32/10 × 32 = 672/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
75/64 = 75 × 5/64 × 5 = 375/320 - Subtract the two like fractions:
672/320 - 375/320 = 672 - 375/320 = 297/320
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-75/64 21/20-75/64 63/10-75/64 21/30-75/64 21/50-75/64 21/70-75/64