Subtract 30/32 from 4/15
4/15 - 30/32 is -161/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 15 × 32 = 480,
4/15 = 4 × 32/15 × 32 = 128/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
30/32 = 30 × 15/32 × 15 = 450/480 - Subtract the two like fractions:
128/480 - 450/480 = 128 - 450/480 = -322/480 - After reducing the fraction, the answer is -161/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-30/32 4/15-60/32 4/30-30/32 4/15-30/64 12/15-30/32 4/15-90/32 4/45-30/32 4/15-30/96 20/15-30/32 4/75-30/32 28/15-30/32