How do you complete the proportion #4/5=x/15#?

1 Answer
Jan 13, 2017

Answer:

Multiply each side of the equation by #15# to find #x#. See full process below:

Explanation:

Multiply each side of the equation by #color(red)(15)# to find #x#.

#color(red)(15) xx 4/5 = color(red)(15) xx x/15#

#60/5 = cancel(color(red)(15)) xx x/color(red)(cancel(color(black)(15)))#

#12 = x#

Substituting #12# for #x# gives:

#4/5 = 12/15#