Subtract 30/32 from 4/7
4/7 - 30/32 is -41/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 7 × 32 = 224,
4/7 = 4 × 32/7 × 32 = 128/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
30/32 = 30 × 7/32 × 7 = 210/224 - Subtract the two like fractions:
128/224 - 210/224 = 128 - 210/224 = -82/224 - After reducing the fraction, the answer is -41/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/7-30/32 4/7-60/32 4/14-30/32 4/7-30/64 12/7-30/32 4/7-90/32 4/21-30/32 4/7-30/96 20/7-30/32 4/35-30/32 28/7-30/32 4/49-30/32