Question

you can buy 1⁄4 pizza for 5 dollars, how much can you purchase for 8 dollars? Write your answer as a fraction.

Answer 1

Write and solve an equation of ratios:

1/4 pizza        $5
------------- = -----------
       x              $8
                                                     2 pizza
Then (1/4)($8) = ($5)x, or x = ---------------   (that's 2/5 of a whole pizza).
                                                     5