Answers

Add 63/20 and 6/84

1^st number: 3 3/20, 2^nd number: 6/84

63/20 + 6/84 is 451/140.

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,
   63/20 = 63 × 21/20 × 21 = 1323/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   6/84 = 6 × 5/84 × 5 = 30/420
4. Add the two like fractions:
   1323/420 + 30/420 = 1323 + 30/420 = 1353/420
5. 1353/420 simplified gives 451/140
6. So, 63/20 + 6/84 = 451/140
   In mixed form: 331/140

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