Question

a chemistry teacher has 18 boxes of baking soda for students to use in an experiment. if each student will use \\( \frac { 2 } { 3 } \\) of a box of baking soda, how many students can perform the experiment?

Explanation:

Step1: Analyze the problem

We need to find out how many times $\frac{2}{3}$ fits into 18. This is a division problem: $18\div\frac{2}{3}$.

Step2: Use the division rule for fractions

When dividing by a fraction, we multiply by its reciprocal. So $18\div\frac{2}{3}=18\times\frac{3}{2}$.

Step3: Calculate the product

$18\times\frac{3}{2}=\frac{18\times3}{2}=\frac{54}{2}=27$.

Answer:

27