Answers

Add 28/15 and 84/56

1^st number: 1 13/15, 2^nd number: 1 28/56

28/15 + 84/56 is 101/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 15 × 56 = 840,
   28/15 = 28 × 56/15 × 56 = 1568/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   84/56 = 84 × 15/56 × 15 = 1260/840
4. Add the two like fractions:
   1568/840 + 1260/840 = 1568 + 1260/840 = 2828/840
5. 2828/840 simplified gives 101/30
6. So, 28/15 + 84/56 = 101/30
   In mixed form: 311/30

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