Add 21/49 and 20/8
1st number: 21/49, 2nd number: 2 4/8
21/49 + 20/8 is 41/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
21/49 = 21 × 8/49 × 8 = 168/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
20/8 = 20 × 49/8 × 49 = 980/392 - Add the two like fractions:
168/392 + 980/392 = 168 + 980/392 = 1148/392 - 1148/392 simplified gives 41/14
- So, 21/49 + 20/8 = 41/14
In mixed form: 213/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49+20/8 21/49+40/8 21/98+20/8 21/49+20/16 63/49+20/8 21/49+60/8 21/49+20/24 21/49+20/40 21/49+20/56