Answers

Add 75/60 and 9/80

1^st number: 1 15/60, 2^nd number: 9/80

75/60 + 9/80 is 109/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 60 × 4 = 240,
   75/60 = 75 × 4/60 × 4 = 300/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   9/80 = 9 × 3/80 × 3 = 27/240
4. Add the two like fractions:
   300/240 + 27/240 = 300 + 27/240 = 327/240
5. 327/240 simplified gives 109/80
6. So, 75/60 + 9/80 = 109/80
   In mixed form: 129/80

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