Subtract 63/42 from 10/24
1st number: 10/24, 2nd number: 1 21/42
10/24 - 63/42 is -13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
10/24 = 10 × 7/24 × 7 = 70/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
63/42 = 63 × 4/42 × 4 = 252/168 - Subtract the two like fractions:
70/168 - 252/168 = 70 - 252/168 = -182/168 - After reducing the fraction, the answer is -13/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/24-63/42 10/48-63/42 10/24-63/84 30/24-63/42 10/72-63/42 50/24-63/42 70/24-63/42