Subtract 15/24 from 14/42
14/42 - 15/24 is -7/24.
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,
14/42 = 14 × 4/42 × 4 = 56/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
15/24 = 15 × 7/24 × 7 = 105/168 - Subtract the two like fractions:
56/168 - 105/168 = 56 - 105/168 = -49/168 - After reducing the fraction, the answer is -7/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/42-15/24 14/42-30/24 14/84-15/24 14/42-15/48 14/42-45/24 14/42-15/72 70/42-15/24 14/42-75/24 98/42-15/24