Answer
To write a fraction as an equivalent fraction with a given denominator, mulitply both the denominator and numerator by the same number so that the denominator equals the given denominator.
Work Step by Step
For example:
To write $\frac{2}{3}$ with the denominator $\frac{x}{60}$, multiply both the numerator and the denominator by 20.
$\frac{2\times20}{3\times20} = \frac{40}{60}$
To figure out what number to times the denominator by, divide the given denominator by the origional denominator (in this example, $60\div3=20$)
