Subtract 1/10 from 20/64
20/64 - 1/10 is 17/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 10 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
20/64 = 20 × 5/64 × 5 = 100/320 - Likewise, for the 2nd fraction, since 10 × 32 = 320,
1/10 = 1 × 32/10 × 32 = 32/320 - Subtract the two like fractions:
100/320 - 32/320 = 100 - 32/320 = 68/320 - After reducing the fraction, the answer is 17/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/64-1/10 20/64-2/10 20/64-1/20 60/64-1/10 20/64-3/10 20/64-1/30 20/64-5/10 20/64-1/50 20/64-7/10 20/64-1/70