Add 15/84 and 3/56
15/84 + 3/56 is 13/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
15/84 = 15 × 2/84 × 2 = 30/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
3/56 = 3 × 3/56 × 3 = 9/168 - Add the two like fractions:
30/168 + 9/168 = 30 + 9/168 = 39/168 - 39/168 simplified gives 13/56
- So, 15/84 + 3/56 = 13/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+3/56 15/84+6/56 45/84+3/56 15/84+9/56 75/84+3/56 15/84+15/56 15/84+21/56