Question

 

Answer 1

\(\dfrac{9\times42}{14\times27}=\dfrac{9\times7\times6}{2\times7\times9\times3}=\dfrac{9\times7\times6}{9\times7\times6}=1\)

Answer 2

\(\dfrac{9\times42}{14\times27}\)

\(=\dfrac{9\times7\times6}{7\times2\times9\times3}\)

\(=\dfrac{6}{2\times3}=1\)

Answer 3

\(\dfrac{9.42}{14.27}=\dfrac{3}{3}=1\)

Answer 4

\(\dfrac{9\times42}{14\times27}\\ =\dfrac{3\times3\times6\times7}{7\times2\times3\times3\times3}\\ =\dfrac{3\times3\times6\times7}{7\times6\times3\times3}\\ =1\)

Answer 5

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