Answers

Add 84/72 and 45/25

1^st number: 1 12/72, 2^nd number: 1 20/25

84/72 + 45/25 is 89/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 25 is 1800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1800
2. For the 1st fraction, since 72 × 25 = 1800,
   84/72 = 84 × 25/72 × 25 = 2100/1800
3. Likewise, for the 2nd fraction, since 25 × 72 = 1800,
   45/25 = 45 × 72/25 × 72 = 3240/1800
4. Add the two like fractions:
   2100/1800 + 3240/1800 = 2100 + 3240/1800 = 5340/1800
5. 5340/1800 simplified gives 89/30
6. So, 84/72 + 45/25 = 89/30
   In mixed form: 229/30

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