Answers

Add 63/84 and 42/56

63/84 + 42/56 is 3/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 56 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   63/84 = 63 × 2/84 × 2 = 126/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
   42/56 = 42 × 3/56 × 3 = 126/168
4. Add the two like fractions:
   126/168 + 126/168 = 126 + 126/168 = 252/168
5. 252/168 simplified gives 3/2
6. So, 63/84 + 42/56 = 3/2
   In mixed form: 11/2

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