Answers

Add 36/21 and 35/20

1^st number: 1 15/21, 2^nd number: 1 15/20

36/21 + 35/20 is 97/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 21 × 20 = 420,
   36/21 = 36 × 20/21 × 20 = 720/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   35/20 = 35 × 21/20 × 21 = 735/420
4. Add the two like fractions:
   720/420 + 735/420 = 720 + 735/420 = 1455/420
5. 1455/420 simplified gives 97/28
6. So, 36/21 + 35/20 = 97/28
   In mixed form: 313/28

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