Answers

Add 9/80 and 25/20

1^st number: 9/80, 2^nd number: 1 5/20

9/80 + 25/20 is 109/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   9/80 = 9 × 1/80 × 1 = 9/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   25/20 = 25 × 4/20 × 4 = 100/80
4. Add the two like fractions:
   9/80 + 100/80 = 9 + 100/80 = 109/80
5. So, 9/80 + 25/20 = 109/80
   In mixed form: 129/80

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