Subtract 15/30 from 4/64
4/64 - 15/30 is -7/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 30 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 64 × 15 = 960,
4/64 = 4 × 15/64 × 15 = 60/960 - Likewise, for the 2nd fraction, since 30 × 32 = 960,
15/30 = 15 × 32/30 × 32 = 480/960 - Subtract the two like fractions:
60/960 - 480/960 = 60 - 480/960 = -420/960 - After reducing the fraction, the answer is -7/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/64-15/30 4/64-15/60 12/64-15/30 4/64-45/30 4/64-15/90 20/64-15/30 4/64-75/30 28/64-15/30