Answers

Add 84/56 and 90/15

1^st number: 1 28/56, 2^nd number: 6 0/15

84/56 + 90/15 is 15/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 15 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   84/56 = 84 × 15/56 × 15 = 1260/840
3. Likewise, for the 2nd fraction, since 15 × 56 = 840,
   90/15 = 90 × 56/15 × 56 = 5040/840
4. Add the two like fractions:
   1260/840 + 5040/840 = 1260 + 5040/840 = 6300/840
5. 6300/840 simplified gives 15/2
6. So, 84/56 + 90/15 = 15/2
   In mixed form: 71/2

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