Subtract 84/24 from 7/5
1st number: 1 2/5, 2nd number: 3 12/24
7/5 - 84/24 is -21/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 5 × 24 = 120,
7/5 = 7 × 24/5 × 24 = 168/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
84/24 = 84 × 5/24 × 5 = 420/120 - Subtract the two like fractions:
168/120 - 420/120 = 168 - 420/120 = -252/120 - After reducing the fraction, the answer is -21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5-84/24 7/10-84/24 7/5-84/48 21/5-84/24 7/15-84/24 7/5-84/72 35/5-84/24 7/25-84/24 49/5-84/24 7/35-84/24