Answers

Add 36/21 and 21/54

1^st number: 1 15/21, 2^nd number: 21/54

36/21 + 21/54 is 265/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 21 × 18 = 378,
   36/21 = 36 × 18/21 × 18 = 648/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   21/54 = 21 × 7/54 × 7 = 147/378
4. Add the two like fractions:
   648/378 + 147/378 = 648 + 147/378 = 795/378
5. 795/378 simplified gives 265/126
6. So, 36/21 + 21/54 = 265/126
   In mixed form: 213/126

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