Question

A patient is given 5 1/2 ml of medicine three times a day how long does a bottle of 132 ml of medicine last

Answer 1

Here,

$5 \frac{1}{2} - \frac{1}{132} \\ \\ = \frac{11}{5} - \frac{1}{132} \\ \\ = \frac{1452 - 5}{660} \\ \\ = \frac{1447}{660} \\ \\ = 2 \frac{19}{660}$