Add 28/12 and 15/56
1st number: 2 4/12, 2nd number: 15/56
28/12 + 15/56 is 437/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
28/12 = 28 × 14/12 × 14 = 392/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
15/56 = 15 × 3/56 × 3 = 45/168 - Add the two like fractions:
392/168 + 45/168 = 392 + 45/168 = 437/168 - So, 28/12 + 15/56 = 437/168
In mixed form: 2101/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+15/56 28/12+30/56 28/24+15/56 84/12+15/56 28/12+45/56 28/36+15/56 28/12+75/56 28/60+15/56 28/84+15/56