Add 56/12 and 15/18
1st number: 4 8/12, 2nd number: 15/18
56/12 + 15/18 is 11/2.
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,
15/18 = 15 × 2/18 × 2 = 30/36 - Add the two like fractions:
168/36 + 30/36 = 168 + 30/36 = 198/36 - 198/36 simplified gives 11/2
- So, 56/12 + 15/18 = 11/2
In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+30/18 56/24+15/18 56/12+15/36 56/12+45/18 56/36+15/18 56/12+15/54 56/12+75/18 56/60+15/18 56/12+15/90 56/84+15/18