2 equivalent fractions for 9/15

The easiest to find equivalent fractions is to multiply both the numerator and denominator by the same integer.  

For Example, an equivalent fraction for 9/15 is 18/30.  I got this answer by multiplying 9*2=18 and 15*2=30.

Another equivalent fraction for 9/15 is 27/45 because 9*3=27 and 15*3=45.

Note
Just make sure that you always multiply the numerator and denominator by the same number, or else your fractions won't be equivalent!!

You can find the area of a rectangle by multiplying the length and height. so multiply 1/2*7/4(which is the simpler version of 1 3/4) and you get 7/8 as your answer.