Subtract 16/5 from 72/28
1st number: 2 16/28, 2nd number: 3 1/5
72/28 - 16/5 is -22/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
72/28 = 72 × 5/28 × 5 = 360/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
16/5 = 16 × 28/5 × 28 = 448/140 - Subtract the two like fractions:
360/140 - 448/140 = 360 - 448/140 = -88/140 - After reducing the fraction, the answer is -22/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/28-32/5 72/56-16/5 72/28-16/10 72/28-48/5 72/84-16/5 72/28-16/15 72/28-80/5 72/28-16/25 72/28-16/35