Subtract 24/42 from 14/20
14/20 - 24/42 is 9/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
14/20 = 14 × 21/20 × 21 = 294/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
24/42 = 24 × 10/42 × 10 = 240/420 - Subtract the two like fractions:
294/420 - 240/420 = 294 - 240/420 = 54/420 - After reducing the fraction, the answer is 9/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/20-24/42 14/20-48/42 14/40-24/42 14/20-24/84 42/20-24/42 14/20-72/42 14/60-24/42 70/20-24/42 98/20-24/42