Answers

Add 21/54 and 63/49

1^st number: 21/54, 2^nd number: 1 14/49

21/54 + 63/49 is 211/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 49 is 2646
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2646
2. For the 1st fraction, since 54 × 49 = 2646,
   21/54 = 21 × 49/54 × 49 = 1029/2646
3. Likewise, for the 2nd fraction, since 49 × 54 = 2646,
   63/49 = 63 × 54/49 × 54 = 3402/2646
4. Add the two like fractions:
   1029/2646 + 3402/2646 = 1029 + 3402/2646 = 4431/2646
5. 4431/2646 simplified gives 211/126
6. So, 21/54 + 63/49 = 211/126
   In mixed form: 185/126

MathStep (Works offline)

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

Related: ⁴²/₅₄+⁶³/₄₉ ²¹/₅₄+⁶³/₉₈ ⁶³/₅₄+⁶³/₄₉

Add Fractions Calculator