Answers

Add 70/8 and 45/84

1^st number: 8 6/8, 2^nd number: 45/84

70/8 + 45/84 is 65/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 84 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 8 × 21 = 168,
   70/8 = 70 × 21/8 × 21 = 1470/168
3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
   45/84 = 45 × 2/84 × 2 = 90/168
4. Add the two like fractions:
   1470/168 + 90/168 = 1470 + 90/168 = 1560/168
5. 1560/168 simplified gives 65/7
6. So, 70/8 + 45/84 = 65/7
   In mixed form: 92/7

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