Answers

Add 12/84 and 18/25

12/84 + 18/25 is 151/175.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 25 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 84 × 25 = 2100,
   12/84 = 12 × 25/84 × 25 = 300/2100
3. Likewise, for the 2nd fraction, since 25 × 84 = 2100,
   18/25 = 18 × 84/25 × 84 = 1512/2100
4. Add the two like fractions:
   300/2100 + 1512/2100 = 300 + 1512/2100 = 1812/2100
5. 1812/2100 simplified gives 151/175
6. So, 12/84 + 18/25 = 151/175

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