Answers

Add 20/45 and 12/27

20/45 + 12/27 is 8/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 27 is 135
   
   Next, find the equivalent fraction of both fractional numbers with denominator 135
2. For the 1st fraction, since 45 × 3 = 135,
   20/45 = 20 × 3/45 × 3 = 60/135
3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
   12/27 = 12 × 5/27 × 5 = 60/135
4. Add the two like fractions:
   60/135 + 60/135 = 60 + 60/135 = 120/135
5. 120/135 simplified gives 8/9
6. So, 20/45 + 12/27 = 8/9

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