Subtract 9/64 from 28/30
28/30 - 9/64 is 761/960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 30 × 32 = 960,
28/30 = 28 × 32/30 × 32 = 896/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
9/64 = 9 × 15/64 × 15 = 135/960 - Subtract the two like fractions:
896/960 - 135/960 = 896 - 135/960 = 761/960
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30-9/64 28/30-18/64 28/60-9/64 84/30-9/64 28/30-27/64 28/90-9/64 28/30-45/64 28/30-63/64