Answers

Add 56/84 and 40/56

56/84 + 40/56 is 29/21.

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,
   56/84 = 56 × 2/84 × 2 = 112/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
   40/56 = 40 × 3/56 × 3 = 120/168
4. Add the two like fractions:
   112/168 + 120/168 = 112 + 120/168 = 232/168
5. 232/168 simplified gives 29/21
6. So, 56/84 + 40/56 = 29/21
   In mixed form: 18/21

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