What number multiplied by 9 equals 27? Multiply 7 by that number.
7balls/9bats = 21 balls/27bats
Practice makes perfect
Let's pay close attention to the given rate.
7balls/9bats = balls/27bats
We need to find the number that we can multiply 9 by to get 27.
9* ? =27
We multiply 9 by 3 to get 27, so we will also multiply 7 by 3 to find an equivalent rate.