Answers

Add 90/80 and 45/36

1^st number: 1 10/80, 2^nd number: 1 9/36

90/80 + 45/36 is 19/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 36 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   90/80 = 90 × 9/80 × 9 = 810/720
3. Likewise, for the 2nd fraction, since 36 × 20 = 720,
   45/36 = 45 × 20/36 × 20 = 900/720
4. Add the two like fractions:
   810/720 + 900/720 = 810 + 900/720 = 1710/720
5. 1710/720 simplified gives 19/8
6. So, 90/80 + 45/36 = 19/8
   In mixed form: 23/8

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