How do you solve #\frac { r } { 18} = \frac { 3} { 27}#?
2 Answers
Jun 24, 2017
Explanation:
The easiest way is to cross multiply:
Jun 24, 2017
One way is to cross-multiply, simplify and then isolate
Explanation:
One way to solve for
#r/18 = 3/27#
To cross multiply...
#27r = 3(18)#
Now we simplify.
#27r = 54#
And then isolate
#(27r)/27 = 54/27#
#r = 2#
We can double check our work by subbing in
#r/18 = 3/27#
#(2)/18 = 3/27#
#1/9=1/9#
Thus, we can conclude that
Hope this helps :)