Answers

Add 35/20 and 28/80

1^st number: 1 15/20, 2^nd number: 28/80

35/20 + 28/80 is 21/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 20 × 4 = 80,
   35/20 = 35 × 4/20 × 4 = 140/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   28/80 = 28 × 1/80 × 1 = 28/80
4. Add the two like fractions:
   140/80 + 28/80 = 140 + 28/80 = 168/80
5. 168/80 simplified gives 21/10
6. So, 35/20 + 28/80 = 21/10
   In mixed form: 21/10

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