Answers

Add 35/70 and 42/81

35/70 + 42/81 is 55/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 81 is 5670
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5670
2. For the 1st fraction, since 70 × 81 = 5670,
   35/70 = 35 × 81/70 × 81 = 2835/5670
3. Likewise, for the 2nd fraction, since 81 × 70 = 5670,
   42/81 = 42 × 70/81 × 70 = 2940/5670
4. Add the two like fractions:
   2835/5670 + 2940/5670 = 2835 + 2940/5670 = 5775/5670
5. 5775/5670 simplified gives 55/54
6. So, 35/70 + 42/81 = 55/54
   In mixed form: 11/54

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