Answers

Add 18/60 and 70/81

18/60 + 70/81 is 943/810.

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,
   18/60 = 18 × 27/60 × 27 = 486/1620
3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
   70/81 = 70 × 20/81 × 20 = 1400/1620
4. Add the two like fractions:
   486/1620 + 1400/1620 = 486 + 1400/1620 = 1886/1620
5. 1886/1620 simplified gives 943/810
6. So, 18/60 + 70/81 = 943/810
   In mixed form: 1133/810

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