Total no. Ratio
Ride the bus x. = 3
Total. 24 8 This creates a proportion where both fractions: x/24 and 3/8 are equivalent fractions.
Cross multiply: 8x = (3)(24)
Multiply: 8x = 72
Divide both sides by 8: 8x/8 = 72/8
Divide: x = 9 <—. The number of students who ride the bus
