Subtract 15/30 from 7/32
7/32 - 15/30 is -9/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 30 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 32 × 15 = 480,
7/32 = 7 × 15/32 × 15 = 105/480 - Likewise, for the 2nd fraction, since 30 × 16 = 480,
15/30 = 15 × 16/30 × 16 = 240/480 - Subtract the two like fractions:
105/480 - 240/480 = 105 - 240/480 = -135/480 - After reducing the fraction, the answer is -9/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/32-15/30 7/64-15/30 7/32-15/60 21/32-15/30 7/32-45/30 7/96-15/30 7/32-15/90 35/32-15/30 7/32-75/30 49/32-15/30