Answers

Add 72/81 and 16/70

72/81 + 16/70 is 352/315.

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,
   72/81 = 72 × 70/81 × 70 = 5040/5670
3. Likewise, for the 2nd fraction, since 70 × 81 = 5670,
   16/70 = 16 × 81/70 × 81 = 1296/5670
4. Add the two like fractions:
   5040/5670 + 1296/5670 = 5040 + 1296/5670 = 6336/5670
5. 6336/5670 simplified gives 352/315
6. So, 72/81 + 16/70 = 352/315
   In mixed form: 137/315

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