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Draw the line AB, 12 centimetres long. M...

Draw the line AB, 12 centimetres long. Mark `C` on it such that AC is `(2)/(3)` of `A B`. Mark D such that AD is `(1)/(4)` of `AC`. What portion of AB is AD?

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`A C=(2)/(3) ( of ) A B=(2)/(3)` of 12, ` `=(2)/(3) xx 12=(24)/(3)=8 (cm) ` `A D =(1)/(4) ( of ) A C=(1)/(4) xx 8 ` =2 cm`
A B=6 times of A D
`A D =A B xx (1)/(6)=(1)/(6) of A B `
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