Answers

Add 21/15 and 56/36

1^st number: 1 6/15, 2^nd number: 1 20/36

21/15 + 56/36 is 133/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 36 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 15 × 12 = 180,
   21/15 = 21 × 12/15 × 12 = 252/180
3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
   56/36 = 56 × 5/36 × 5 = 280/180
4. Add the two like fractions:
   252/180 + 280/180 = 252 + 280/180 = 532/180
5. 532/180 simplified gives 133/45
6. So, 21/15 + 56/36 = 133/45
   In mixed form: 243/45

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