Two-fifths of the 6th-grade students voted for class president. If there were 150 students that voted, how many students are in 6th grade?
Okay so we know that there are only 150 students that voted, but we have no clue how many kids are in 6th grade. Here's how we find out:
150 / 2 = 75
5 x 75 = 375 kids in 6th grade
Sorry, but its kind of difficult to explain over the computer.