Answers

Add 84/45 and 18/84

1^st number: 1 39/45, 2^nd number: 18/84

84/45 + 18/84 is 437/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 84 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 45 × 28 = 1260,
   84/45 = 84 × 28/45 × 28 = 2352/1260
3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
   18/84 = 18 × 15/84 × 15 = 270/1260
4. Add the two like fractions:
   2352/1260 + 270/1260 = 2352 + 270/1260 = 2622/1260
5. 2622/1260 simplified gives 437/210
6. So, 84/45 + 18/84 = 437/210
   In mixed form: 217/210

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