Subtract 50/54 from 9/72
9/72 - 50/54 is -173/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
9/72 = 9 × 3/72 × 3 = 27/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
50/54 = 50 × 4/54 × 4 = 200/216 - Subtract the two like fractions:
27/216 - 200/216 = 27 - 200/216 = -173/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/72-50/54 27/72-50/54 45/72-50/54 63/72-50/54