30/45
What numbers multiply to equal 30,and 45?
30: 130 ,215, 310, 56,
45: 145, 315, 59,
Look for the LARGEST number that they have in common.
15 is the largest number they have in common! Replace those multiplications with the numbers... like a so:
30/45 = (215)/(3*15)
The 15's will cancel out of the problem leaving us with the simplest form of the fraction.
2/3!
