Add 18/49 and 21/10
1st number: 18/49, 2nd number: 2 1/10
18/49 + 21/10 is 1209/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
18/49 = 18 × 10/49 × 10 = 180/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
21/10 = 21 × 49/10 × 49 = 1029/490 - Add the two like fractions:
180/490 + 1029/490 = 180 + 1029/490 = 1209/490 - So, 18/49 + 21/10 = 1209/490
In mixed form: 2229/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/49+21/10 18/49+42/10 18/98+21/10 18/49+21/20 54/49+21/10 18/49+63/10 18/49+21/30 90/49+21/10 18/49+21/50 18/49+21/70