Answers

Add 49/20 and 63/84

1^st number: 2 9/20, 2^nd number: 63/84

49/20 + 63/84 is 16/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 20 × 21 = 420,
   49/20 = 49 × 21/20 × 21 = 1029/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   63/84 = 63 × 5/84 × 5 = 315/420
4. Add the two like fractions:
   1029/420 + 315/420 = 1029 + 315/420 = 1344/420
5. 1344/420 simplified gives 16/5
6. So, 49/20 + 63/84 = 16/5
   In mixed form: 31/5

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