Answers

Add 4/84 and 9/72

4/84 + 9/72 is 29/168.

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,
   4/84 = 4 × 6/84 × 6 = 24/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   9/72 = 9 × 7/72 × 7 = 63/504
4. Add the two like fractions:
   24/504 + 63/504 = 24 + 63/504 = 87/504
5. 87/504 simplified gives 29/168
6. So, 4/84 + 9/72 = 29/168

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