Subtract 2/72 from 21/2
1st number: 10 1/2, 2nd number: 2/72
21/2 - 2/72 is 377/36.
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,
21/2 = 21 × 36/2 × 36 = 756/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
2/72 = 2 × 1/72 × 1 = 2/72 - Subtract the two like fractions:
756/72 - 2/72 = 756 - 2/72 = 754/72 - After reducing the fraction, the answer is 377/36
- In mixed form: 1017/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2-2/72 21/2-4/72 21/4-2/72 63/2-2/72 21/2-6/72 21/6-2/72 21/2-10/72 21/10-2/72 21/2-14/72 21/14-2/72