Answers

Add 45/15 and 54/84

1^st number: 3 0/15, 2^nd number: 54/84

45/15 + 54/84 is 51/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 15 × 28 = 420,
   45/15 = 45 × 28/15 × 28 = 1260/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   54/84 = 54 × 5/84 × 5 = 270/420
4. Add the two like fractions:
   1260/420 + 270/420 = 1260 + 270/420 = 1530/420
5. 1530/420 simplified gives 51/14
6. So, 45/15 + 54/84 = 51/14
   In mixed form: 39/14

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