Answers

Add 28/20 and 45/75

1^st number: 1 8/20, 2^nd number: 45/75

28/20 + 45/75 is 2/1.

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,
   45/75 = 45 × 4/75 × 4 = 180/300
4. Add the two like fractions:
   420/300 + 180/300 = 420 + 180/300 = 600/300
5. 600/300 simplified gives 2/1
6. So, 28/20 + 45/75 = 2/1

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