Subtract 42/24 from 12/5
1st number: 2 2/5, 2nd number: 1 18/24
12/5 - 42/24 is 13/20.
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,
12/5 = 12 × 24/5 × 24 = 288/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
42/24 = 42 × 5/24 × 5 = 210/120 - Subtract the two like fractions:
288/120 - 210/120 = 288 - 210/120 = 78/120 - After reducing the fraction, the answer is 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5-42/24 12/5-84/24 12/10-42/24 12/5-42/48 36/5-42/24 12/15-42/24 12/5-42/72 60/5-42/24 12/25-42/24 84/5-42/24 12/35-42/24