Subtract 12/36 from 72/7
1st number: 10 2/7, 2nd number: 12/36
72/7 - 12/36 is 209/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 7 × 36 = 252,
72/7 = 72 × 36/7 × 36 = 2592/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
12/36 = 12 × 7/36 × 7 = 84/252 - Subtract the two like fractions:
2592/252 - 84/252 = 2592 - 84/252 = 2508/252 - After reducing the fraction, the answer is 209/21
- In mixed form: 920/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/7-24/36 72/14-12/36 72/7-12/72 72/21-12/36 72/7-60/36 72/35-12/36 72/7-84/36 72/49-12/36