Subtract 24/14 from 40/42
1st number: 40/42, 2nd number: 1 10/14
40/42 - 24/14 is -16/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
40/42 = 40 × 1/42 × 1 = 40/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
24/14 = 24 × 3/14 × 3 = 72/42 - Subtract the two like fractions:
40/42 - 72/42 = 40 - 72/42 = -32/42 - After reducing the fraction, the answer is -16/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42-24/14 40/42-48/14 40/84-24/14 40/42-24/28 40/42-72/14 40/42-24/42 40/42-24/70 40/42-24/98