Answer:
It's very simple! You multiply the numerators (top numbers) together and denominators (bottom numbers) together. Then you can simplify.
Examples:
[tex]\frac{a}{c}[/tex] × [tex]\frac{b}{d}[/tex] = [tex]\frac{ab}{cd}[/tex]
[tex]\frac{3}{4}[/tex] × [tex]\frac{2}{5}[/tex] = [tex]\frac{6}{20}[/tex] = [tex]\frac{3}{10}[/tex]
[tex]\frac{2x}{3y}[/tex] × [tex]\frac{5}{4}[/tex] = [tex]\frac{10x}{12y}[/tex]
