Answers

Add 45/12 and 84/49

1^st number: 3 9/12, 2^nd number: 1 35/49

45/12 + 84/49 is 153/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 49 is 588
   
   Next, find the equivalent fraction of both fractional numbers with denominator 588
2. For the 1st fraction, since 12 × 49 = 588,
   45/12 = 45 × 49/12 × 49 = 2205/588
3. Likewise, for the 2nd fraction, since 49 × 12 = 588,
   84/49 = 84 × 12/49 × 12 = 1008/588
4. Add the two like fractions:
   2205/588 + 1008/588 = 2205 + 1008/588 = 3213/588
5. 3213/588 simplified gives 153/28
6. So, 45/12 + 84/49 = 153/28
   In mixed form: 513/28

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