Subtract 30/64 from 7/30
7/30 - 30/64 is -113/480.
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,
7/30 = 7 × 32/30 × 32 = 224/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
30/64 = 30 × 15/64 × 15 = 450/960 - Subtract the two like fractions:
224/960 - 450/960 = 224 - 450/960 = -226/960 - After reducing the fraction, the answer is -113/480
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-30/64 7/30-60/64 7/60-30/64 21/30-30/64 7/30-90/64 7/90-30/64 35/30-30/64 49/30-30/64