MATH CHALLENGE:
If the quotient of 8/13 and 2 is subtracted from the product of 7/4 and 8/21 what is the difference?

Respuesta :

Given:

The quotient of [tex]\dfrac{8}{13}[/tex] and 2 is subtracted from the product of [tex]\dfrac{7}{4}[/tex] and [tex]\dfrac{8}{21}[/tex].

To find:

The difference.

Solution:

The quotient of [tex]\dfrac{8}{13}[/tex] and 2 is subtracted from the product of [tex]\dfrac{7}{4}[/tex] and [tex]\dfrac{8}{21}[/tex].

[tex]\dfrac{7}{4}\times \dfrac{8}{21}-\dfrac{\dfrac{8}{13}}{2}[/tex]

[tex]=\dfrac{1}{1}\times \dfrac{2}{3}-\dfrac{8}{13\times 2}[/tex]

[tex]=\dfrac{2}{3}-\dfrac{4}{13}[/tex]

[tex]=\dfrac{26-12}{39}[/tex]

[tex]=\dfrac{14}{39}[/tex]

Therefore, the difference is [tex]\dfrac{14}{39}[/tex].