Subtract 60/7 from 81/15
1st number: 5 6/15, 2nd number: 8 4/7
81/15 - 60/7 is -111/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
81/15 = 81 × 7/15 × 7 = 567/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
60/7 = 60 × 15/7 × 15 = 900/105 - Subtract the two like fractions:
567/105 - 900/105 = 567 - 900/105 = -333/105 - After reducing the fraction, the answer is -111/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/30-60/7 81/15-60/14 81/45-60/7 81/15-60/21 81/75-60/7 81/15-60/35 81/15-60/49