Question

6分之5*13分之1+9分之5*13分之2+18分之5*13分之6

Answer 1

(5/6)*(1/13)+(5/9)*(2/13)+(5/18)*(6/13)

=(1/13)*(5/6+(5/9)*2+(5/18)*6)

=(1/13)*(5/6+10/9+30/18)

=(1/13)*(1/3)*(5/2+10/3+30/6)

=(1/13)*(1/3)*(15/6+20/6+30/6)

=(1/13)*(1/3)*(65/6)

=65/234

=5/18