Answers

Add 84/70 and 28/60

1^st number: 1 14/70, 2^nd number: 28/60

84/70 + 28/60 is 5/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   84/70 = 84 × 6/70 × 6 = 504/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   28/60 = 28 × 7/60 × 7 = 196/420
4. Add the two like fractions:
   504/420 + 196/420 = 504 + 196/420 = 700/420
5. 700/420 simplified gives 5/3
6. So, 84/70 + 28/60 = 5/3
   In mixed form: 12/3

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