Answers

Add 75/40 and 18/80

1^st number: 1 35/40, 2^nd number: 18/80

75/40 + 18/80 is 21/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   75/40 = 75 × 2/40 × 2 = 150/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   18/80 = 18 × 1/80 × 1 = 18/80
4. Add the two like fractions:
   150/80 + 18/80 = 150 + 18/80 = 168/80
5. 168/80 simplified gives 21/10
6. So, 75/40 + 18/80 = 21/10
   In mixed form: 21/10

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