Answers

Add 36/42 and 2/21

36/42 + 2/21 is 20/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   36/42 = 36 × 1/42 × 1 = 36/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   2/21 = 2 × 2/21 × 2 = 4/42
4. Add the two like fractions:
   36/42 + 4/42 = 36 + 4/42 = 40/42
5. 40/42 simplified gives 20/21
6. So, 36/42 + 2/21 = 20/21

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