Subtract 15/24 from 2/42
2/42 - 15/24 is -97/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
2/42 = 2 × 4/42 × 4 = 8/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
15/24 = 15 × 7/24 × 7 = 105/168 - Subtract the two like fractions:
8/168 - 105/168 = 8 - 105/168 = -97/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/42-15/24 2/42-30/24 2/84-15/24 2/42-15/48 6/42-15/24 2/42-45/24 2/42-15/72 10/42-15/24 2/42-75/24 14/42-15/24