Subtract 10/72 from 7/2
1st number: 3 1/2, 2nd number: 10/72
7/2 - 10/72 is 121/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
7/2 = 7 × 36/2 × 36 = 252/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
10/72 = 10 × 1/72 × 1 = 10/72 - Subtract the two like fractions:
252/72 - 10/72 = 252 - 10/72 = 242/72 - After reducing the fraction, the answer is 121/36
- In mixed form: 313/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2-10/72 7/2-20/72 7/4-10/72 21/2-10/72 7/2-30/72 7/6-10/72 35/2-10/72 7/2-50/72 7/10-10/72 49/2-10/72 7/2-70/72 7/14-10/72