Subtract 72/20 from 35/25
1st number: 1 10/25, 2nd number: 3 12/20
35/25 - 72/20 is -11/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
35/25 = 35 × 4/25 × 4 = 140/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
72/20 = 72 × 5/20 × 5 = 360/100 - Subtract the two like fractions:
140/100 - 360/100 = 140 - 360/100 = -220/100 - After reducing the fraction, the answer is -11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25-72/20 35/50-72/20 35/25-72/40 35/75-72/20 35/25-72/60