Subtract 30/27 from 56/72
1st number: 56/72, 2nd number: 1 3/27
56/72 - 30/27 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
56/72 = 56 × 3/72 × 3 = 168/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
30/27 = 30 × 8/27 × 8 = 240/216 - Subtract the two like fractions:
168/216 - 240/216 = 168 - 240/216 = -72/216 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72-60/27 56/72-30/54 56/72-90/27 56/72-30/81