Subtract 9/35 from 72/28
1st number: 2 16/28, 2nd number: 9/35
72/28 - 9/35 is 81/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 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 35 × 4 = 140,
9/35 = 9 × 4/35 × 4 = 36/140 - Subtract the two like fractions:
360/140 - 36/140 = 360 - 36/140 = 324/140 - After reducing the fraction, the answer is 81/35
- In mixed form: 211/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/28-18/35 72/56-9/35 72/28-9/70 72/28-27/35 72/84-9/35 72/28-45/35 72/28-63/35