Add 49/21 and 20/63
1st number: 2 7/21, 2nd number: 20/63
49/21 + 20/63 is 167/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
49/21 = 49 × 3/21 × 3 = 147/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
20/63 = 20 × 1/63 × 1 = 20/63 - Add the two like fractions:
147/63 + 20/63 = 147 + 20/63 = 167/63 - So, 49/21 + 20/63 = 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: 98/21+20/63 49/21+40/63 49/42+20/63 49/21+60/63 49/63+20/63