Subtract 7/72 from 56/42
1st number: 1 14/42, 2nd number: 7/72
56/42 - 7/72 is 89/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
56/42 = 56 × 12/42 × 12 = 672/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
7/72 = 7 × 7/72 × 7 = 49/504 - Subtract the two like fractions:
672/504 - 49/504 = 672 - 49/504 = 623/504 - After reducing the fraction, the answer is 89/72
- In mixed form: 117/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-14/72 56/84-7/72 56/42-21/72 56/42-35/72 56/42-49/72