Answers

Add 70/80 and 70/84

70/80 + 70/84 is 41/24.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 84 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 80 × 21 = 1680,
   70/80 = 70 × 21/80 × 21 = 1470/1680
3. Likewise, for the 2nd fraction, since 84 × 20 = 1680,
   70/84 = 70 × 20/84 × 20 = 1400/1680
4. Add the two like fractions:
   1470/1680 + 1400/1680 = 1470 + 1400/1680 = 2870/1680
5. 2870/1680 simplified gives 41/24
6. So, 70/80 + 70/84 = 41/24
   In mixed form: 117/24

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