Question

a construction company ordered 4/7 of a ton of concrete, 5/7 of a ton of bricks, and 3/7 of a ton of stone. how many tons of material did the company order in all?

tons

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Explanation:

Step1: Add the fractions

To find the total tons of material, we add the amounts of concrete, bricks, and stone. The amounts are $\frac{4}{7}$, $\frac{5}{7}$, and $\frac{3}{7}$. Since they have the same denominator, we add the numerators: $4 + 5 + 3 = 12$. So the sum is $\frac{12}{7}$.

Step2: Simplify (if needed)

$\frac{12}{7}$ can also be written as a mixed number $1\frac{5}{7}$, but as an improper fraction, it's $\frac{12}{7}$.

Answer:

$\frac{12}{7}$ (or $1\frac{5}{7}$)