Subtract 9/10 from 72/35
1st number: 2 2/35, 2nd number: 9/10
72/35 - 9/10 is 81/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
72/35 = 72 × 2/35 × 2 = 144/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
9/10 = 9 × 7/10 × 7 = 63/70 - Subtract the two like fractions:
144/70 - 63/70 = 144 - 63/70 = 81/70 - In mixed form: 111/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/35-18/10 72/70-9/10 72/35-9/20 72/35-27/10 72/35-9/30 72/35-45/10 72/35-9/50 72/35-63/10 72/35-9/70