Subtract 54/5 from 7/15
1st number: 7/15, 2nd number: 10 4/5
7/15 - 54/5 is -31/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
7/15 = 7 × 1/15 × 1 = 7/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
54/5 = 54 × 3/5 × 3 = 162/15 - Subtract the two like fractions:
7/15 - 162/15 = 7 - 162/15 = -155/15 - After reducing the fraction, the answer is -31/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15-54/5 7/30-54/5 7/15-54/10 21/15-54/5 7/45-54/5 7/15-54/15 35/15-54/5 7/75-54/5 7/15-54/25 49/15-54/5 7/15-54/35