Respuesta :
Answer:
In the three days the Amazon stock share rose by [tex]5\frac{5}{8}[/tex]
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 = [tex]+4\frac{1}{2}[/tex]
The change in share on Thursday is given as = [tex]+3\frac{3}{8}[/tex]
The change in share on Friday is given as = [tex]-2\frac{1}{4}[/tex]
Thus, the over all change is given by:
[tex]4\frac{1}{2}+3\frac{3}{8}-2\frac{1}{4}[/tex]
In order to combine mixed numbers, we will work the whole numbers and the fractions separately.
⇒ [tex](4+3-2)+(\frac{1}{2}+\frac{3}{8}-\frac{1}{4})[/tex]
⇒ [tex]5+(\frac{1}{2}+\frac{3}{8}-\frac{1}{4})[/tex]
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.
⇒ [tex]5+(\frac{1\times 4}{2\times 4}+\frac{3}{8}-\frac{1\times 2}{4\times 2})[/tex]
⇒ [tex]5+(\frac{4}{8}+\frac{3}{8}-\frac{2}{8})[/tex]
Combining the numerators.
⇒ [tex]5+\frac{4+3-2}{8}[/tex]
⇒ [tex]5+\frac{5}{8}[/tex]
⇒ [tex]5\frac{5}{8}[/tex]
The overall change for the three days can be given as : [tex]+5\frac{5}{8}[/tex]
This means the share rose by [tex]5\frac{5}{8}[/tex]
