Answers

Add 90/6 and 72/75

1^st number: 15 0/6, 2^nd number: 72/75

90/6 + 72/75 is 399/25.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 75 is 150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 150
2. For the 1st fraction, since 6 × 25 = 150,
   90/6 = 90 × 25/6 × 25 = 2250/150
3. Likewise, for the 2nd fraction, since 75 × 2 = 150,
   72/75 = 72 × 2/75 × 2 = 144/150
4. Add the two like fractions:
   2250/150 + 144/150 = 2250 + 144/150 = 2394/150
5. 2394/150 simplified gives 399/25
6. So, 90/6 + 72/75 = 399/25
   In mixed form: 1524/25

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