Subtract 20/45 from 56/6
1st number: 9 2/6, 2nd number: 20/45
56/6 - 20/45 is 80/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
56/6 = 56 × 15/6 × 15 = 840/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Subtract the two like fractions:
840/90 - 40/90 = 840 - 40/90 = 800/90 - After reducing the fraction, the answer is 80/9
- In mixed form: 88/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/6-40/45 56/12-20/45 56/6-20/90 56/6-60/45 56/18-20/45 56/30-20/45 56/42-20/45