Question

How do you solve 1/3=x/30?

Answer 1

you would cross-multiply:
1/3=x/30
1x=3(30)
x=90

Answer 2

i typed it wrong... hold on

Answer 3

you would cross-multiply:
1/3=x/30
1(30)=3x
10=x

Answer 4

there is an easier way...
1 x
--- = ---
3 30
the number diagonal from the x is what you divide by
the other two numbers you multiply
(30 x 1)/3 = 10

Answer 5

Thanks so much! I thought that was how to do it but it's been decades since I did this. My little boy needed help. :)

Answer 6

It is good that you are helping him. :)