Answers

Add 56/81 and 54/70

56/81 + 54/70 is 4147/2835.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 70 is 5670
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5670
2. For the 1st fraction, since 81 × 70 = 5670,
   56/81 = 56 × 70/81 × 70 = 3920/5670
3. Likewise, for the 2nd fraction, since 70 × 81 = 5670,
   54/70 = 54 × 81/70 × 81 = 4374/5670
4. Add the two like fractions:
   3920/5670 + 4374/5670 = 3920 + 4374/5670 = 8294/5670
5. 8294/5670 simplified gives 4147/2835
6. So, 56/81 + 54/70 = 4147/2835
   In mixed form: 11312/2835

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