Subtract 24/63 from 20/40
20/40 - 24/63 is 5/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
20/40 = 20 × 63/40 × 63 = 1260/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
24/63 = 24 × 40/63 × 40 = 960/2520 - Subtract the two like fractions:
1260/2520 - 960/2520 = 1260 - 960/2520 = 300/2520 - After reducing the fraction, the answer is 5/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40-48/63 20/80-24/63 60/40-24/63 20/40-72/63