Answers

Add 15/90 and 84/56

1^st number: 15/90, 2^nd number: 1 28/56

15/90 + 84/56 is 5/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 56 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 90 × 28 = 2520,
   15/90 = 15 × 28/90 × 28 = 420/2520
3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
   84/56 = 84 × 45/56 × 45 = 3780/2520
4. Add the two like fractions:
   420/2520 + 3780/2520 = 420 + 3780/2520 = 4200/2520
5. 4200/2520 simplified gives 5/3
6. So, 15/90 + 84/56 = 5/3
   In mixed form: 12/3

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