Subtract 50/72 from 27/54
27/54 - 50/72 is -7/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
27/54 = 27 × 4/54 × 4 = 108/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
50/72 = 50 × 3/72 × 3 = 150/216 - Subtract the two like fractions:
108/216 - 150/216 = 108 - 150/216 = -42/216 - After reducing the fraction, the answer is -7/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/54-50/72