Question

what should be added to 3*5/11 to get 5*11/18?​

Answer 1

Answer: 335/198 or  $1\frac{137}{198}$  or 1.691  $\left[\begin{array}{ccc} &-&-\\6&9&1\end{array}\right]$ (91 keeps recurring after 6).

Step-by-step explanation:

Since the number is added to 3*5/11 to get 5*11/18, we need to subtract 3*5/11 from 5*11/18 to get the number.

3 x 5/11

= 15/11

5 x 11/18

= 55/18

LCM of 18 and 11 = 198

15/11 x 18/18

= 270/198

55/18 x 11/11

= 605/198

605/198 - 270/198

(605 - 270)/198

335/198

= $1\frac{137}{198}$

= 1.691919191919191   (recurring and non-terminating decimal)