Answers

Add 84/28 and 48/30

1^st number: 3 0/28, 2^nd number: 1 18/30

84/28 + 48/30 is 23/5.

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,
   84/28 = 84 × 15/28 × 15 = 1260/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   48/30 = 48 × 14/30 × 14 = 672/420
4. Add the two like fractions:
   1260/420 + 672/420 = 1260 + 672/420 = 1932/420
5. 1932/420 simplified gives 23/5
6. So, 84/28 + 48/30 = 23/5
   In mixed form: 43/5

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