Subtract 42/72 from 49/36
1st number: 1 13/36, 2nd number: 42/72
49/36 - 42/72 is 7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
49/36 = 49 × 2/36 × 2 = 98/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Subtract the two like fractions:
98/72 - 42/72 = 98 - 42/72 = 56/72 - After reducing the fraction, the answer is 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/36-42/72 49/36-84/72 49/72-42/72