Subtract 3/7 from 24/42
24/42 - 3/7 is 1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
24/42 = 24 × 1/42 × 1 = 24/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
3/7 = 3 × 6/7 × 6 = 18/42 - Subtract the two like fractions:
24/42 - 18/42 = 24 - 18/42 = 6/42 - 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: 48/42-3/7 24/42-6/7 24/84-3/7 24/42-3/14 72/42-3/7 24/42-9/7 24/42-3/21 24/42-15/7 24/42-3/35 24/42-21/7 24/42-3/49