Add 56/12 and 20/18
1st number: 4 8/12, 2nd number: 1 2/18
56/12 + 20/18 is 52/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
56/12 = 56 × 3/12 × 3 = 168/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36 - Add the two like fractions:
168/36 + 40/36 = 168 + 40/36 = 208/36 - 208/36 simplified gives 52/9
- So, 56/12 + 20/18 = 52/9
In mixed form: 57/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+40/18 56/24+20/18 56/12+20/36 56/12+60/18 56/36+20/18 56/12+20/54 56/60+20/18 56/12+20/90 56/84+20/18