Question

HELP CHANGE 5 OUT OF NINE TO A PERCENTAGE
CHANGE 72 OUT OF 123 TO A PERCENTAGE

Answer 1

Answers as follows:

To change a fraction to a decimal, one divides the numerator by the denominator.

(a) " 5 out of 9 " can be written as: "
`(5)/(9)` " .

→ \frac{5}{9} = [5 ÷ 9] = 0.55555555555.... ;

To write as a percentage, we move the decimal place two (2) spaces over, and then add the percentage sign:
⇒ 0.5555555555555555555......

to: " 55.5555555555555.......% " ;

or, round to: 55.555 % .

(b) " 72 out of 123 " can be written as: "
`(72)/(123)` " .

→ \frac{72}{123} = [72 ÷ 123] = 0.5853658536585366 ;

To write as a percentage, we move the decimal place two (2) spaces over, and then add the percentage sign:
⇒ 0.5853658536585366.

to: " 58.53658536585366.......% " ;

or, round to: 58.5375 % .

Source(s):
Online Web2.0 Scientific Calculator .