Subtract 70/32 from 72/28
1st number: 2 16/28, 2nd number: 2 6/32
72/28 - 70/32 is 43/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 28 × 8 = 224,
72/28 = 72 × 8/28 × 8 = 576/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
70/32 = 70 × 7/32 × 7 = 490/224 - Subtract the two like fractions:
576/224 - 490/224 = 576 - 490/224 = 86/224 - After reducing the fraction, the answer is 43/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/56-70/32 72/28-70/64 72/84-70/32 72/28-70/96