Subtract 84/7 from 8/15
1st number: 8/15, 2nd number: 12 0/7
8/15 - 84/7 is -172/15.
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,
8/15 = 8 × 7/15 × 7 = 56/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
84/7 = 84 × 15/7 × 15 = 1260/105 - Subtract the two like fractions:
56/105 - 1260/105 = 56 - 1260/105 = -1204/105 - After reducing the fraction, the answer is -172/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/15-84/7 8/30-84/7 8/15-84/14 24/15-84/7 8/45-84/7 8/15-84/21 40/15-84/7 8/75-84/7 8/15-84/35 56/15-84/7 8/15-84/49