Answers

Add 4/60 and 60/81

4/60 + 60/81 is 109/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 81 is 1620
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1620
2. For the 1st fraction, since 60 × 27 = 1620,
   4/60 = 4 × 27/60 × 27 = 108/1620
3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
   60/81 = 60 × 20/81 × 20 = 1200/1620
4. Add the two like fractions:
   108/1620 + 1200/1620 = 108 + 1200/1620 = 1308/1620
5. 1308/1620 simplified gives 109/135
6. So, 4/60 + 60/81 = 109/135

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