if 240 of the 420 students in the building were girls, what was the ratio of boys to girls in the building?
Mathematics · Middle School · Tue Nov 03 2020
Answered on
Lets try and find out the number of boys in the building. We do that by substracting 240 from 420.
420-240=180 boys.
Lets try and divide the number of boys to the number of girls and simplify the fraction into a non dividable fraction.
The actual ratio is 180:240 but we need to simplify it.
In order to simplify we need to find the biggest common factor of 180 and 240.
Which in our case is 60.
180/60=3
240/60=4
So the ratio boys to girls is 3:4.