Answers

Add 4/81 and 14/72

4/81 + 14/72 is 79/324.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 72 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 81 × 8 = 648,
   4/81 = 4 × 8/81 × 8 = 32/648
3. Likewise, for the 2nd fraction, since 72 × 9 = 648,
   14/72 = 14 × 9/72 × 9 = 126/648
4. Add the two like fractions:
   32/648 + 126/648 = 32 + 126/648 = 158/648
5. 158/648 simplified gives 79/324
6. So, 4/81 + 14/72 = 79/324

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