Here’s how to do it
Step 1: Add the ratios like this:
1x+5x=90
Since there are like terms you add 1 and 5 x.
You should then get:
6x=90
Divide both sides by 6 and you should get x=15
Plus in 15 for 1 and 5
And your ratios should equal to 15 and 75.
Hope this helps! :)
