Answers

Add 27/42 and 14/21

27/42 + 14/21 is 55/42.

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,
   27/42 = 27 × 1/42 × 1 = 27/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   14/21 = 14 × 2/21 × 2 = 28/42
4. Add the two like fractions:
   27/42 + 28/42 = 27 + 28/42 = 55/42
5. So, 27/42 + 14/21 = 55/42
   In mixed form: 113/42

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