Subtract 42/24 from 2/7
1st number: 2/7, 2nd number: 1 18/24
2/7 - 42/24 is -41/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 7 × 24 = 168,
2/7 = 2 × 24/7 × 24 = 48/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Subtract the two like fractions:
48/168 - 294/168 = 48 - 294/168 = -246/168 - After reducing the fraction, the answer is -41/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7-42/24 2/7-84/24 2/14-42/24 2/7-42/48 6/7-42/24 2/21-42/24 2/7-42/72 10/7-42/24 2/35-42/24 14/7-42/24 2/49-42/24