Subtract 1/42 from 4/24
4/24 - 1/42 is 1/7.
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,
4/24 = 4 × 7/24 × 7 = 28/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
1/42 = 1 × 4/42 × 4 = 4/168 - Subtract the two like fractions:
28/168 - 4/168 = 28 - 4/168 = 24/168 - After reducing the fraction, the answer is 1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/24-1/42 4/24-2/42 4/48-1/42 4/24-1/84 12/24-1/42 4/24-3/42 4/72-1/42 20/24-1/42 4/24-5/42 28/24-1/42 4/24-7/42