Add 21/49 and 20/9
1st number: 21/49, 2nd number: 2 2/9
21/49 + 20/9 is 167/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
21/49 = 21 × 9/49 × 9 = 189/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
20/9 = 20 × 49/9 × 49 = 980/441 - Add the two like fractions:
189/441 + 980/441 = 189 + 980/441 = 1169/441 - 1169/441 simplified gives 167/63
- So, 21/49 + 20/9 = 167/63
In mixed form: 241/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49+20/9 21/49+40/9 21/98+20/9 21/49+20/18 63/49+20/9 21/49+60/9 21/49+20/27 21/49+20/45 21/49+20/63