Subtract 27/64 from 4/10
4/10 - 27/64 is -7/320.
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,
4/10 = 4 × 32/10 × 32 = 128/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
27/64 = 27 × 5/64 × 5 = 135/320 - Subtract the two like fractions:
128/320 - 135/320 = 128 - 135/320 = -7/320
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10-27/64 4/10-54/64 4/20-27/64 12/10-27/64 4/10-81/64 4/30-27/64 20/10-27/64 4/50-27/64 28/10-27/64 4/70-27/64