How do you rewrite the expression #5/6=?/18#?

2 Answers
Jun 17, 2018

Answer:

#15#

Explanation:

We get
#(5*3)/(6*3)=15/18#

Jun 17, 2018

Answer:

The unknown value became #15#

Explanation:

The trick hear is to realise that if you multiply by 1 you do not change the value. Example: #6xx1=6#

But 1 comes in many forms. So we can change the way something looks without changing its intrinsic value.

#color(green)(5/6color(red)(xx1) color(white)("d") ->color(white)("d") 5/6color(red)(xx3/3)color(white)("d") =color(white)("d") (5xx3)/(6xx3)color(white)("d") =color(white)("d") 15/18#