Question

10/11x11/12x24/7x21/2

Answer 1

\(\dfrac{10}{11}\times\dfrac{11}{12}\times\dfrac{24}{7}\times\dfrac{21}{2}\)

\(=\dfrac{10}{12}\times\dfrac{24}{7}\times\dfrac{21}{2}\)

\(=\dfrac{20}{7}\times\dfrac{21}{2}=30\)

Answer 2

10/11 × 11/12  × 24/7 × 21/2

= 5/6 × 36

= 30

Answer 3

\(\dfrac{10}{11}\times\dfrac{11}{12}\times\dfrac{24}{7}\times\dfrac{21}{2}=\dfrac{10}{12}\times\dfrac{72}{2}=\dfrac{10}{12}\times36=30\)

Answer 4

10/11 x 11/12 x24/7 x21/2

=110/132 x 504/14

=30