Answers

Add 18/84 and 6/72

18/84 + 6/72 is 25/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 84 × 6 = 504,
   18/84 = 18 × 6/84 × 6 = 108/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   6/72 = 6 × 7/72 × 7 = 42/504
4. Add the two like fractions:
   108/504 + 42/504 = 108 + 42/504 = 150/504
5. 150/504 simplified gives 25/84
6. So, 18/84 + 6/72 = 25/84

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