Question

The sum of 1/9, 2/3, and 5/18is
A. 12/9.
B. 8/30.
C. 19/18.
D. 4/15.

Answer 1

1/9+2/3+5/18

=7/9+5/18

=19/18

= 1 1/18

=1.055556

Answer 2

`find\ LCM(9;\ 3;\ 18)\\9=\fbox3\cdot\fbox3\\3=\fbox3\\18=2\cdot\fbox3\cdot\fbox3\\\\LCM(9;\ 3;\ 18)=\fbox3\cdot\fbox3\cdot2=\boxed{\boxed{18}}\\\\(1)/(9)=(1\cdot2)/(9\cdot2)=(2)/(18);\ (2)/(3)=(2\cdot6)/(3\cdot6)=(12)/(18);\\\\(1)/(9)+(2)/(3)+(5)/(18)=(2)/(18)+(12)/(18)+(5)/(18)=(2+12+5)/(18)=(19)/(18)=(18+1)/(18)=(18)/(18)+(1)/(18)=\boxed{1(1)/(18)}`