Subtract 10/45 from 20/56
20/56 - 10/45 is 17/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
10/45 = 10 × 56/45 × 56 = 560/2520 - Subtract the two like fractions:
900/2520 - 560/2520 = 900 - 560/2520 = 340/2520 - After reducing the fraction, the answer is 17/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56-10/45 20/56-20/45 20/56-10/90 60/56-10/45 20/56-30/45 20/56-50/45 20/56-70/45