The HCF of $$\frac{9}{{10}}{\text{,}}\frac{{12}}{{25}}{\text{,}}\frac{ – McqOptions

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1.	The HCF of $$\frac{9}{{10}}{\text{,}}\frac{{12}}{{25}}{\text{,}}\frac{{18}}{{35}}$$and $$\frac{{21}}{{40}}$$ is = ?
A.	$\frac{3}{5}$$
B.	$\frac{{252}}{5}$$
C.	$\frac{3}{{1400}}$$
D.	$\frac{{63}}{{700}}$$
Answer» D. $\frac{{63}}{{700}}$$

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