Answers

Add 54/72 and 9/84

54/72 + 9/84 is 6/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 84 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   54/72 = 54 × 7/72 × 7 = 378/504
3. Likewise, for the 2nd fraction, since 84 × 6 = 504,
   9/84 = 9 × 6/84 × 6 = 54/504
4. Add the two like fractions:
   378/504 + 54/504 = 378 + 54/504 = 432/504
5. 432/504 simplified gives 6/7
6. So, 54/72 + 9/84 = 6/7

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