Answers

Add 36/21 and 27/84

1^st number: 1 15/21, 2^nd number: 27/84

36/21 + 27/84 is 57/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   36/21 = 36 × 4/21 × 4 = 144/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   27/84 = 27 × 1/84 × 1 = 27/84
4. Add the two like fractions:
   144/84 + 27/84 = 144 + 27/84 = 171/84
5. 171/84 simplified gives 57/28
6. So, 36/21 + 27/84 = 57/28
   In mixed form: 21/28

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