Answers

Add 28/70 and 84/30

1^st number: 28/70, 2^nd number: 2 24/30

28/70 + 84/30 is 16/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   28/70 = 28 × 3/70 × 3 = 84/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   84/30 = 84 × 7/30 × 7 = 588/210
4. Add the two like fractions:
   84/210 + 588/210 = 84 + 588/210 = 672/210
5. 672/210 simplified gives 16/5
6. So, 28/70 + 84/30 = 16/5
   In mixed form: 31/5

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