Subtract 30/32 from 20/7
1st number: 2 6/7, 2nd number: 30/32
20/7 - 30/32 is 215/112.
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,
20/7 = 20 × 32/7 × 32 = 640/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
30/32 = 30 × 7/32 × 7 = 210/224 - Subtract the two like fractions:
640/224 - 210/224 = 640 - 210/224 = 430/224 - After reducing the fraction, the answer is 215/112
- In mixed form: 1103/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7-30/32 20/7-60/32 20/14-30/32 20/7-30/64 60/7-30/32 20/7-90/32 20/21-30/32 20/7-30/96 20/35-30/32 20/49-30/32