HASSAN:Hey, look at those grids! When we are multiplying fractions, we are essentially multiplying a portion by a portion, creating something even tinier. ARCHIMEDES:Exactly. And 15/63 is ...

They are all equivalent fractions. You can use multiplication to find equivalent fractions, by multiplying both the denominator and the numerator by a number. Here, \(\frac {1} {2}\) has been ...