Add 28/7 and 56/18
1st number: 4 0/7, 2nd number: 3 2/18
28/7 + 56/18 is 64/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
28/7 = 28 × 18/7 × 18 = 504/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
56/18 = 56 × 7/18 × 7 = 392/126 - Add the two like fractions:
504/126 + 392/126 = 504 + 392/126 = 896/126 - 896/126 simplified gives 64/9
- So, 28/7 + 56/18 = 64/9
In mixed form: 71/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+56/18 28/14+56/18 28/7+56/36 84/7+56/18 28/21+56/18 28/7+56/54 28/35+56/18 28/7+56/90 28/49+56/18