Add 56/7 and 20/18
1st number: 8 0/7, 2nd number: 1 2/18
56/7 + 20/18 is 82/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
56/7 = 56 × 18/7 × 18 = 1008/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
20/18 = 20 × 7/18 × 7 = 140/126 - Add the two like fractions:
1008/126 + 140/126 = 1008 + 140/126 = 1148/126 - 1148/126 simplified gives 82/9
- So, 56/7 + 20/18 = 82/9
In mixed form: 91/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+40/18 56/14+20/18 56/7+20/36 56/7+60/18 56/21+20/18 56/7+20/54 56/35+20/18 56/7+20/90 56/49+20/18