Subtract 7/32 from 18/30
18/30 - 7/32 is 61/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
18/30 = 18 × 16/30 × 16 = 288/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
7/32 = 7 × 15/32 × 15 = 105/480 - Subtract the two like fractions:
288/480 - 105/480 = 288 - 105/480 = 183/480 - After reducing the fraction, the answer is 61/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30-7/32 18/30-14/32 18/60-7/32 18/30-7/64 54/30-7/32 18/30-21/32 18/90-7/32 18/30-7/96 90/30-7/32 18/30-35/32 18/30-49/32