Subtract 63/24 from 12/42
1st number: 12/42, 2nd number: 2 15/24
12/42 - 63/24 is -131/56.
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,
12/42 = 12 × 4/42 × 4 = 48/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
63/24 = 63 × 7/24 × 7 = 441/168 - Subtract the two like fractions:
48/168 - 441/168 = 48 - 441/168 = -393/168 - After reducing the fraction, the answer is -131/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42-63/24 12/84-63/24 12/42-63/48 36/42-63/24 12/42-63/72 60/42-63/24 84/42-63/24