Answers

Add 90/75 and 10/80

1^st number: 1 15/75, 2^nd number: 10/80

90/75 + 10/80 is 53/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 80 is 1200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1200
2. For the 1st fraction, since 75 × 16 = 1200,
   90/75 = 90 × 16/75 × 16 = 1440/1200
3. Likewise, for the 2nd fraction, since 80 × 15 = 1200,
   10/80 = 10 × 15/80 × 15 = 150/1200
4. Add the two like fractions:
   1440/1200 + 150/1200 = 1440 + 150/1200 = 1590/1200
5. 1590/1200 simplified gives 53/40
6. So, 90/75 + 10/80 = 53/40
   In mixed form: 113/40

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