Solution
A reducible fraction is one, in which $$\frac{P}{Q}$$ can be written as $$\frac{ak}{bk}$$ = $$\frac{a}{b}$$, where a and b are co-prime and k is constant. Or we can say that $$\frac{P}{Q}$$ is a reducible fraction if P and Q are not co-prime.
On analyzing we can see that
$$\frac{105}{112}=\frac{\left(15\times7\right)}{16\times7}=\frac{15}{16}.$$
Hence Option (b) is right answer.
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