Add 28/49 and 45/56
28/49 + 45/56 is 11/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 56 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
28/49 = 28 × 8/49 × 8 = 224/392 - Likewise, for the 2nd fraction, since 56 × 7 = 392,
45/56 = 45 × 7/56 × 7 = 315/392 - Add the two like fractions:
224/392 + 315/392 = 224 + 315/392 = 539/392 - 539/392 simplified gives 11/8
- So, 28/49 + 45/56 = 11/8
In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/49+45/56 28/49+90/56 28/98+45/56 84/49+45/56