Subtract 30/32 from 3/10
3/10 - 30/32 is -51/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 10 × 16 = 160,
3/10 = 3 × 16/10 × 16 = 48/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
30/32 = 30 × 5/32 × 5 = 150/160 - Subtract the two like fractions:
48/160 - 150/160 = 48 - 150/160 = -102/160 - After reducing the fraction, the answer is -51/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-30/32 3/10-60/32 3/20-30/32 3/10-30/64 9/10-30/32 3/10-90/32 3/30-30/32 3/10-30/96 15/10-30/32 3/50-30/32 21/10-30/32 3/70-30/32