Subtract 42/72 from 7/6
1st number: 1 1/6, 2nd number: 42/72
7/6 - 42/72 is 7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
7/6 = 7 × 12/6 × 12 = 84/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Subtract the two like fractions:
84/72 - 42/72 = 84 - 42/72 = 42/72 - After reducing the fraction, the answer is 7/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/6-42/72 7/6-84/72 7/12-42/72 21/6-42/72 7/18-42/72 35/6-42/72 7/30-42/72 49/6-42/72 7/42-42/72