Answers

Add 50/81 and 25/72

50/81 + 25/72 is 625/648.

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,
   50/81 = 50 × 8/81 × 8 = 400/648
3. Likewise, for the 2nd fraction, since 72 × 9 = 648,
   25/72 = 25 × 9/72 × 9 = 225/648
4. Add the two like fractions:
   400/648 + 225/648 = 400 + 225/648 = 625/648
5. So, 50/81 + 25/72 = 625/648

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