Answers

Add 36/21 and 54/42

1^st number: 1 15/21, 2^nd number: 1 12/42

36/21 + 54/42 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 42 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   36/21 = 36 × 2/21 × 2 = 72/42
3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
   54/42 = 54 × 1/42 × 1 = 54/42
4. Add the two like fractions:
   72/42 + 54/42 = 72 + 54/42 = 126/42
5. 126/42 simplified gives 3/1
6. So, 36/21 + 54/42 = 3/1

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