Subtract 24/42 from 5/12
5/12 - 24/42 is -13/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
5/12 = 5 × 7/12 × 7 = 35/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
24/42 = 24 × 2/42 × 2 = 48/84 - Subtract the two like fractions:
35/84 - 48/84 = 35 - 48/84 = -13/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/12-24/42 5/12-48/42 5/24-24/42 5/12-24/84 15/12-24/42 5/12-72/42 5/36-24/42 25/12-24/42 5/60-24/42 35/12-24/42 5/84-24/42