A grade has 81 girls and 72 boys. The greatest split into groups that have the same ratio girls the boys as a whole grade. How many girls are in a group that has 16 boys?

A grade has 81 girls and 72 boys. The greatest split into groups that have the same ratio girls the boys as a whole grade.

=> Find how many girls are in a group that has 16 boys

Formula and Ratio:

=> 81 : 72 = x : 16 - we need to find the value of girls or the number of girls in the given ratio.

=> 16 * 81 = 1 296

=> 1 296 / 72 = 18

Therefore the value of girls numbers is 18. The new ratio will be:

18 : 16