Answers

Add 45/12 and 90/50

1^st number: 3 9/12, 2^nd number: 1 40/50

45/12 + 90/50 is 111/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 50 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 12 × 25 = 300,
   45/12 = 45 × 25/12 × 25 = 1125/300
3. Likewise, for the 2nd fraction, since 50 × 6 = 300,
   90/50 = 90 × 6/50 × 6 = 540/300
4. Add the two like fractions:
   1125/300 + 540/300 = 1125 + 540/300 = 1665/300
5. 1665/300 simplified gives 111/20
6. So, 45/12 + 90/50 = 111/20
   In mixed form: 511/20

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