Fraction = Value ∕ Total Fraction of boys = No. of boys in the class ∕ Total No. of students Total No. of students = No. of boys + No. of girls =12+18=30 No. of boys =12 ⇒ fraction of boys =12∕30=2∕5 (Thus 6 goes into 12, 2 times and 30, 5 times) NOTE: Fraction of girls =18∕30=3∕5 (Thus 6 goes into 18,3 times and 30,5 times) The sum of all fractions should be 1 Verify: Fraction of boys + Fraction of girls =2∕5+3∕5=(2+3)∕5=5∕5=1