Question

estelle, a pet store employee, wants to fit two fish tanks on one table. one fish tank is 7/10 of a foot wide and the other fish tank is 2/5 of a foot wide. when placed next to each other, what is the total width of the two fish tanks? write your answer as a fraction or as a whole or mixed number.

Explanation:

Step1: Make common denominator

We need to make the denominators of $\frac{7}{10}$ and $\frac{2}{5}$ the same. Since $5\times2 = 10$, we rewrite $\frac{2}{5}$ as $\frac{2\times2}{5\times2}=\frac{4}{10}$.

Step2: Add the fractions

Now we add the two fractions with the same - denominator: $\frac{7}{10}+\frac{4}{10}=\frac{7 + 4}{10}=\frac{11}{10}$.

Step3: Convert to mixed - number

Since $11\div10 = 1$ remainder $1$, $\frac{11}{10}=1\frac{1}{10}$.

Answer:

$1\frac{1}{10}$