Add 28/49 and 9/70
28/49 + 9/70 is 7/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
28/49 = 28 × 10/49 × 10 = 280/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
9/70 = 9 × 7/70 × 7 = 63/490 - Add the two like fractions:
280/490 + 63/490 = 280 + 63/490 = 343/490 - 343/490 simplified gives 7/10
- So, 28/49 + 9/70 = 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/49+9/70 28/49+18/70 28/98+9/70 84/49+9/70 28/49+27/70 28/49+45/70 28/49+63/70