17+414\dfrac{1}{7} + \dfrac{4}{14}71+144 is equal to
514\dfrac{5}{14}145
57\dfrac{5}{7}75
314\dfrac{3}{14}143
37\dfrac{3}{7}73
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LCM of 7 and 14 = 14.
⇒1×27×2+414⇒214+414⇒2+414⇒614⇒37\Rightarrow \dfrac{1 \times 2}{7 \times 2} + \dfrac{4}{14}\\[1em] \Rightarrow \dfrac{2}{14} + \dfrac{4}{14}\\[1em] \Rightarrow \dfrac{2 + 4}{14}\\[1em] \Rightarrow \dfrac{6}{14}\\[1em] \Rightarrow \dfrac{3}{7}⇒7×21×2+144⇒142+144⇒142+4⇒146⇒73
Hence, option 4 is the correct option.
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