In the stock market an amazon stock share rose 4 and 1/2 points on wednesday rose 3 and 3/8 points on thursday and fell 2 and 1/4 points on friday. what was the overall change in the amazon stock share for these three days ?

In the three days the Amazon stock share rose by  

Step-by-step explanation:

Given:

Amazon stock share

rose 4 and 1/2 points on Wednesday

rose 3 and 3/8 points on Thursday

fell 2 and 1/4 points on Friday

To find the overall change.

Solution:

The change in share on Wednesday is given as =

The change in share on Thursday is given as =

The change in share on Friday is given as =

Thus, the over all change is given by:

In order to combine mixed numbers, we will work the whole numbers and the fractions separately.

⇒

⇒

To combine fractions, we will take least common denominator.

The L.C.D. 2,4 and 8 = 8  as it is the least common multiple for all the denominators

So, we multiply the numerators with the corresponding numbers to make the denominators common.

⇒

⇒

Combining the numerators.

⇒

⇒  

⇒  

The overall change for the three days can be given as :  

This means the share rose by  

2/5

step-by-step explanation:

the correct answer is d

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