Mrs. cho wrote the following problem on the board. problem: startfraction 1 over x squared endfraction minus startfraction 2 over y endfraction divided by y minus 2 x squared step 1: startfraction y over x squared y endfraction minust startfraction 2 x squared over x squared y endfraction divided by y minus 2 x squared step 2: startfraction y minus 2 x squared over x squared y endfraction divided by startfraction y minus 2 x squared over 1 endfraction step 3: startfraction y minus 2 x squared over x squared y endfraction times startfraction 1 over y minus 2 x squared endfraction what should mrs. cho do next?
a. find a common denominator for the two fractions.
b. divide the numerator and denominator of the first fraction by x2 and y.
c. multiply the numerators, multiply the denominators, and then simplify.
d. multiply the first fraction by the reciprocal of the second fraction.