Question

Dustin is mixing concrete. A formula for concrete calls for 3/8 gal of water. Dustin wants to make 7/9 more concrete than the formula creates.

How much water should Dustin use?

Express your answer as a fraction in simplest form.

Answer 1

Multiply.

\(\sf \dfrac{3}{8} \times \dfrac{7}{9}\)

Answer 2

9*3=27
8*7=56
and you add it right

Answer 3

@greenlegodude57

Answer 4

No, you multiply the numerators together and then the denominators together.

Answer 5

oh ok

Answer 6

so 3*7=21
8*9=72

Answer 7

Yes, that gives us:

\(\sf\dfrac{21}{72}\)

Answer 8

Now simplify it.

Answer 9

oh ok thanks

Answer 10

wait by what

Answer 11

Find the factors of the 2 numbers and see if they have any in common.

Answer 12

um ok can it be 3

Answer 13

Yes, so divide them.

Answer 14

21 / 3 = ?
72 / 3 = ?

Answer 15

7/24