Question

The length of Ramesh’s notebook is 9 cm 5 mm. What will be its length in cm?

Answer 1

Answer:

9.5cm

Step-by-step explanation:

1cm=10mm

so 5mm=o.5cm

9cm 5mm=9.5cm

Answer 2

$\huge\fbox\green{☞answer}$

$Length \: of \: notebook = 9 \: cm \: 5 \: mm \\ = 9 \: cm + 5 \: mm \\ = 9 \: cm + 5 \times 1 \: mm \\ = 9 \: cm + 5 \times \frac{1}{10} cm \\ = 9 \: cm + \frac{5}{10} cm \\ (9 + \frac{5}{10} )cm \\ = \frac{(9 \times 10 + 5)}{(10)} cm \\ = \frac{90 + 5}{10} cm \\ = \frac{95}{10} cm \\ = 9.5 \: cm$

$Note :- As \: 10 \: mm = 1 \: cm \\ 1 \: mm = \frac{1}{10} cm$