Subtract 56/16 from 7/72
1st number: 7/72, 2nd number: 3 8/16
7/72 - 56/16 is -245/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
7/72 = 7 × 2/72 × 2 = 14/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
56/16 = 56 × 9/16 × 9 = 504/144 - Subtract the two like fractions:
14/144 - 504/144 = 14 - 504/144 = -490/144 - After reducing the fraction, the answer is -245/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72-56/16 7/72-56/32 21/72-56/16 7/72-56/48 35/72-56/16 7/72-56/80 49/72-56/16