Question

Half and Quarter of a Metre
Using your metre scale, cut a string of one metre.
• On this string, mark the length $\frac{1}{2}$ metre, $\frac{1}{4}$ metre and $\frac{3}{4}$ metre.
• Using your string, draw a line of length $\frac{1}{2}$ metre on the floor.
How many centimetres long is the line? ___________
Remember, 1 metre = 100 cm
So
$\frac{1}{2}$ metre = ....... cm
$\frac{1}{4}$ metre = ....... cm
$\frac{3}{4}$ metre = ....... cm
Can you see that when we add $\frac{1}{2}$ and $\frac{1}{4}$ we get $\frac{3}{4}$ ?

Answer 1

1 m = 100 cm
Line of $\frac{1}{2}$ m on the floor = 100 cm ÷ 2 = 50 cm
So, a line of $\frac{1}{2}$ m on the floor is 50 cm long.
$\frac{1}{2}$ m = 100 cm ÷ 2 = 50 cm

$\frac{1}{4}$ m = 100 cm ÷ 4 = 25 cm

$\frac{3}{4}$ m = 25 cm × 3 = 75 cm

Disclaimer: Students are advised to do the activity by themselves.