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Which number is not equal to 225%?its is exercise number 5

Which Number Is Not Equal To 225its Is Exercise Number 5 class=

Sagot :

To do this, you can first convert the percentage form to its decimal form, like this

[tex]225\text{\%}=\frac{225}{100}=2.25[/tex]

Now, you can convert the numbers that are possible answers into their decimal form, like this

Option A.

[tex]2\frac{1}{4}=\frac{2\cdot8+1}{4}=\frac{8+1}{4}=\frac{9}{4}=2.25[/tex]

Option B.

[tex]\frac{9}{4}=2.25[/tex]

Option C.

[tex]\frac{50}{40}=\frac{5\cdot10}{4\cdot10}=\frac{5}{4}=1.25[/tex]

Option D.

[tex]\frac{45}{20}=\frac{9\cdot5}{4\cdot5}=\frac{9}{4}=2.25[/tex]

Therefore, the number that is not equal to 225% is 50/40 and the correct answer is C. 50/40.

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