1) [latex]\frac{5y ^{2}x }{3z ^{9} } : \frac{25y ^{6}x ^{2} }{12z ^{8} } = [/latex] 2) [latex] \frac{a}{3a+3b} : \frac{a^{2} }{a^{2} - b^{2} } =[/latex]3) [latex] \frac{x+y}{y} : \frac{x^{2} + 2xy + y^{2} }{xy^{2} } =[/latex]4)...

1) [latex]\frac{5y ^{2}x }{3z ^{9} } : \frac{25y ^{6}x ^{2} }{12z ^{8} } = [/latex]  2) [latex] \frac{a}{3a+3b} : \frac{a^{2} }{a^{2} - b^{2} } =[/latex] 3) [latex] \frac{x+y}{y} : \frac{x^{2} + 2xy + y^{2} }{xy^{2} } =[/latex] 4) [latex] \frac{(x+y)^{2} }{x^{2} - y^{2} } : (x+y)[/latex] 5) [latex](c+2) : \frac{c^{2} + 4c+4 }{c^{2} - 4} [/latex]