Answers

Add 70/84 and 16/20

70/84 + 16/20 is 49/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   70/84 = 70 × 5/84 × 5 = 350/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   16/20 = 16 × 21/20 × 21 = 336/420
4. Add the two like fractions:
   350/420 + 336/420 = 350 + 336/420 = 686/420
5. 686/420 simplified gives 49/30
6. So, 70/84 + 16/20 = 49/30
   In mixed form: 119/30

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