Question

12, 8:0,64+3,05:0,05/8 2/3:1 4/9-1

Answer 1

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Answer 2

Let's break down the expression step by step:

1. 12: This is just the number 12.

2. 8:0: The expression 8:0 represents division by zero, which is undefined in mathematics. Division by zero is not possible, so this expression has no value.

3. 64+3: This is the addition of 64 and 3, which equals 67.

4. 05:0: This seems to be a typo, as the number format should not have a leading zero before the decimal point. Assuming it is meant to be 5:0, it represents division. In that case, 5 divided by 0 is also undefined, just like in the previous case.

5. 05/8: Here again, assuming it is meant to be 5/8, it represents the division of 5 by 8. This can be simplified as a decimal to 0.625.

6. 2/3:1: This is a combination of division and a ratio. The division 2/3 equals approximately 0.6667, and then dividing 0.6667 by 1 gives the same value of 0.6667.

7. 4/9-1: This is the subtraction of 1 from the fraction 4/9. To subtract fractions, you need a common denominator. In this case, the common denominator is 9. So, 4/9 - 1 can be rewritten as (4 - 9)/9, which simplifies to -5/9.

To summarize:

• 12
• Division by zero (undefined)
• 67
• Division by zero (undefined)
• 0.625
• 0.6667
• -5/9