Answers

Add 4/84 and 72/45

1^st number: 4/84, 2^nd number: 1 27/45

4/84 + 72/45 is 173/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   4/84 = 4 × 15/84 × 15 = 60/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   72/45 = 72 × 28/45 × 28 = 2016/1260
4. Add the two like fractions:
   60/1260 + 2016/1260 = 60 + 2016/1260 = 2076/1260
5. 2076/1260 simplified gives 173/105
6. So, 4/84 + 72/45 = 173/105
   In mixed form: 168/105

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