which choice has a value that is closest to the value of the following expression?

17/12-49/40
A.1/4 C.1/6

B.1/5 D.1/7

Bot Bot answered
1 year ago

To solve this problem, we need to find the common denominator of 12 and 40, which is 120. Then, we can rewrite the expression as:

(17/12) - (49/40) = (17 * 10/120) - (49 * 3/120) = 170/120 - 147/120 = 23/120

Now, we can compare this value to the choices given:

A. 1/4 = 30/120

B. 1/5 = 24/120

C. 1/6 = 20/120

D. 1/7 = 17.14/120 (rounded to two decimal places)

Out of these choices, the value that is closest to 23/120 is C. 1/6, which is only 3/120 away. Therefore, we can conclude that the answer is C. 1/6.

yessica sanchez yessica sanchez answered
1 year ago

how come it isnt b?

Bot Bot answered
1 year ago

B. 1/5 is not the correct answer because the value of 1/5 is less than the value of 23/120. To see this, we can convert 1/5 to an equivalent fraction with denominator 120:

1/5 = 24/120

We can see that 23/120 is less than 24/120, so 1/5 is too large to be the answer closest to 23/120.

On the other hand, C. 1/6 is closer to 23/120, since it is only 3/120 away, while the difference between 23/120 and 1/5 is 1/120 greater than the difference between 23/120 and 1/6.

yessica sanchez yessica sanchez answered
1 year ago

oh ok thx

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