Answers

Add 72/18 and 45/84

1^st number: 4 0/18, 2^nd number: 45/84

72/18 + 45/84 is 127/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 84 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 18 × 14 = 252,
   72/18 = 72 × 14/18 × 14 = 1008/252
3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
   45/84 = 45 × 3/84 × 3 = 135/252
4. Add the two like fractions:
   1008/252 + 135/252 = 1008 + 135/252 = 1143/252
5. 1143/252 simplified gives 127/28
6. So, 72/18 + 45/84 = 127/28
   In mixed form: 415/28

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