Subtract 24/20 from 72/7
1st number: 10 2/7, 2nd number: 1 4/20
72/7 - 24/20 is 318/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
72/7 = 72 × 20/7 × 20 = 1440/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
24/20 = 24 × 7/20 × 7 = 168/140 - Subtract the two like fractions:
1440/140 - 168/140 = 1440 - 168/140 = 1272/140 - After reducing the fraction, the answer is 318/35
- In mixed form: 93/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/7-48/20 72/14-24/20 72/7-24/40 72/7-72/20 72/21-24/20 72/7-24/60 72/35-24/20 72/49-24/20