Answers

Add 28/75 and 90/12

1^st number: 28/75, 2^nd number: 7 6/12

28/75 + 90/12 is 1181/150.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 12 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 75 × 4 = 300,
   28/75 = 28 × 4/75 × 4 = 112/300
3. Likewise, for the 2nd fraction, since 12 × 25 = 300,
   90/12 = 90 × 25/12 × 25 = 2250/300
4. Add the two like fractions:
   112/300 + 2250/300 = 112 + 2250/300 = 2362/300
5. 2362/300 simplified gives 1181/150
6. So, 28/75 + 90/12 = 1181/150
   In mixed form: 7131/150

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