The H.C.F. of $$\frac{{9}}{{10}},$$ $$\frac{{12}}{{25}},$$ $$\frac{{18}}{{35}}$$ and $$\frac{{21}}{{40}}$$ is: Options: A . &nbsp$$\frac{{3}}{{5}}$$ B . &nbsp$$\frac{{252}}{{5}}$$ C . &nbsp$$\frac{{3}}{{1400}}$$ D . &nbsp$$\frac{{63}}{{700}}$$

The H.C.F. of $$\frac{{9}}{{10}},$$ $$\frac{{12}}{{25}},$$ $$\frac{{18}}{{35}}$$

Question

The H.C.F. of $$\frac{{9}}{{10}},$$ $$\frac{{12}}{{25}},$$ $$\frac{{18}}{{35}}$$ and $$\frac{{21}}{{40}}$$ is:

Options:

A . $$\frac{{3}}{{5}}$$

B . $$\frac{{252}}{{5}}$$

C . $$\frac{{3}}{{1400}}$$

D . $$\frac{{63}}{{700}}$$

Answer: Option C

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