Answers

Add 15/84 and 20/8

1^st number: 15/84, 2^nd number: 2 4/8

15/84 + 20/8 is 75/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   15/84 = 15 × 2/84 × 2 = 30/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   20/8 = 20 × 21/8 × 21 = 420/168
4. Add the two like fractions:
   30/168 + 420/168 = 30 + 420/168 = 450/168
5. 450/168 simplified gives 75/28
6. So, 15/84 + 20/8 = 75/28
   In mixed form: 219/28

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