Answers

Add 70/28 and 84/30

1^st number: 2 14/28, 2^nd number: 2 24/30

70/28 + 84/30 is 53/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 30 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 28 × 15 = 420,
   70/28 = 70 × 15/28 × 15 = 1050/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   84/30 = 84 × 14/30 × 14 = 1176/420
4. Add the two like fractions:
   1050/420 + 1176/420 = 1050 + 1176/420 = 2226/420
5. 2226/420 simplified gives 53/10
6. So, 70/28 + 84/30 = 53/10
   In mixed form: 53/10

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