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Which of the following represents the expression (2/3) * (12/22) + (24/60)?

a) 0.6
b) 0.4
c) 0.7
d) 0.5

User Greeness
by
7.5k points

1 Answer

4 votes

Final answer:

The correct answer is achieved by multiplying (2/3) and (12/22), which simplifies to approximately 0.182, then adding this result to (24/60), which simplifies to 0.4, giving a final result of approximately 0.582, which doesn't match any of the provided options.

Step-by-step explanation:

To find the value of the expression (2/3) * (12/22) + (24/60), we should first simplify and calculate each term separately. We start by multiplying the first two fractions:

(2/3) * (12/22) = (2 * 12) / (3 * 22) = 24 / 66

Now we simplify 24/66, which can be reduced to 4/11 by dividing both numerator and denominator by 6.

Next, we simplify the second fraction (24/60) which reduces to 2/5 when both numerator and denominator are divided by 12.

To add these two fractions, we must first find a common denominator. The least common denominator (LCD) for 11 and 5 is 55. We convert both fractions to have the LCD:

4/11 = (4*5) / (11*5) = 20/55
2/5 = (2*11) / (5*11) = 22/55

Now we can add the two fractions:

20/55 + 22/55 = 42/55

Converting this fraction to a decimal, 42/55 is approximately 0.7636, which is not one of the options provided, so we need to double-check our calculations.

We notice that the original provided options likely expected simplification of fractions to decimals directly:

(2/3) * (12/22) converts to approximately 0.182
as (24/60) converts to 0.4.

Add these two decimals together:

0.182 + 0.4 = 0.582

Therefore, the correct answer is none of the options: a) 0.6 b) 0.4 c) 0.7 d) 0.5

User Jan Kronquist
by
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