Answers

Add 15/90 and 84/80

1^st number: 15/90, 2^nd number: 1 4/80

15/90 + 84/80 is 73/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   15/90 = 15 × 8/90 × 8 = 120/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   84/80 = 84 × 9/80 × 9 = 756/720
4. Add the two like fractions:
   120/720 + 756/720 = 120 + 756/720 = 876/720
5. 876/720 simplified gives 73/60
6. So, 15/90 + 84/80 = 73/60
   In mixed form: 113/60

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