Subtract 84/24 from 7/15
1st number: 7/15, 2nd number: 3 12/24
7/15 - 84/24 is -91/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
7/15 = 7 × 8/15 × 8 = 56/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
84/24 = 84 × 5/24 × 5 = 420/120 - Subtract the two like fractions:
56/120 - 420/120 = 56 - 420/120 = -364/120 - After reducing the fraction, the answer is -91/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15-84/24 7/30-84/24 7/15-84/48 21/15-84/24 7/45-84/24 7/15-84/72 35/15-84/24 7/75-84/24 49/15-84/24