Subtract 24/42 from 12/8
1st number: 1 4/8, 2nd number: 24/42
12/8 - 24/42 is 13/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
12/8 = 12 × 21/8 × 21 = 252/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
24/42 = 24 × 4/42 × 4 = 96/168 - Subtract the two like fractions:
252/168 - 96/168 = 252 - 96/168 = 156/168 - After reducing the fraction, the answer is 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8-24/42 12/8-48/42 12/16-24/42 12/8-24/84 36/8-24/42 12/8-72/42 12/24-24/42 60/8-24/42 12/40-24/42 84/8-24/42 12/56-24/42