Question

The length of Ramesh's notebook is $9cm5mm$. What will be its length in $cm$?

Answer 1

$1cm=10mm$.

Here, we will convert the given length in $mm$ (millimeters) first and then into $cm$(centimeters).

The length of Ramesh's notebook is $9cm5mm$.

For converting $cm$ into $mm$ we have to multiply the value by $10$

So, $9cm5mm=9\times 10+5$

$=90+5$

$=95mm$.

Now, for converting $mm$ into $cm$ we will divide the value obtained by $10$.

So, $95mm=\frac{95}{10}cm$

$=9.5cm$ (As many number of zero in the denominator that many numbers we will count from the right side and place the decimal point).

Therefore, the length of Ramesh's book is $9.5cm$