Answers

Add 49/21 and 84/63

1^st number: 2 7/21, 2^nd number: 1 21/63

49/21 + 84/63 is 11/3.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 21 × 3 = 63,
   49/21 = 49 × 3/21 × 3 = 147/63
3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
   84/63 = 84 × 1/63 × 1 = 84/63
4. Add the two like fractions:
   147/63 + 84/63 = 147 + 84/63 = 231/63
5. 231/63 simplified gives 11/3
6. So, 49/21 + 84/63 = 11/3
   In mixed form: 32/3

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁹⁸/₂₁+⁸⁴/₆₃ ⁴⁹/₄₂+⁸⁴/₆₃ ⁴⁹/₆₃+⁸⁴/₆₃

Add Fractions Calculator