Answers

Add 28/20 and 35/75

1^st number: 1 8/20, 2^nd number: 35/75

28/20 + 35/75 is 28/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 75 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 20 × 15 = 300,
   28/20 = 28 × 15/20 × 15 = 420/300
3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
   35/75 = 35 × 4/75 × 4 = 140/300
4. Add the two like fractions:
   420/300 + 140/300 = 420 + 140/300 = 560/300
5. 560/300 simplified gives 28/15
6. So, 28/20 + 35/75 = 28/15
   In mixed form: 113/15

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