Subtract 54/8 from 50/72
1st number: 50/72, 2nd number: 6 6/8
50/72 - 54/8 is -109/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
50/72 = 50 × 1/72 × 1 = 50/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
54/8 = 54 × 9/8 × 9 = 486/72 - Subtract the two like fractions:
50/72 - 486/72 = 50 - 486/72 = -436/72 - After reducing the fraction, the answer is -109/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/72-54/16 50/72-54/24 50/72-54/40 50/72-54/56