Answers

Add 21/28 and 27/56

21/28 + 27/56 is 69/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 56 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 28 × 2 = 56,
   21/28 = 21 × 2/28 × 2 = 42/56
3. Likewise, for the 2nd fraction, since 56 × 1 = 56,
   27/56 = 27 × 1/56 × 1 = 27/56
4. Add the two like fractions:
   42/56 + 27/56 = 42 + 27/56 = 69/56
5. So, 21/28 + 27/56 = 69/56
   In mixed form: 113/56

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