Answers

Add 10/50 and 42/81

10/50 + 42/81 is 97/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 81 is 4050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4050
2. For the 1st fraction, since 50 × 81 = 4050,
   10/50 = 10 × 81/50 × 81 = 810/4050
3. Likewise, for the 2nd fraction, since 81 × 50 = 4050,
   42/81 = 42 × 50/81 × 50 = 2100/4050
4. Add the two like fractions:
   810/4050 + 2100/4050 = 810 + 2100/4050 = 2910/4050
5. 2910/4050 simplified gives 97/135
6. So, 10/50 + 42/81 = 97/135

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