Answers

Add 64/5 and 70/84

1^st number: 12 4/5, 2^nd number: 70/84

64/5 + 70/84 is 409/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 5 × 84 = 420,
   64/5 = 64 × 84/5 × 84 = 5376/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   70/84 = 70 × 5/84 × 5 = 350/420
4. Add the two like fractions:
   5376/420 + 350/420 = 5376 + 350/420 = 5726/420
5. 5726/420 simplified gives 409/30
6. So, 64/5 + 70/84 = 409/30
   In mixed form: 1319/30

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