Question

- 7/8 * -1 3/7

Answer 1

@Maira355

Answer 2

Do you know how to change a mixed numeral into a fraction?

Answer 3

that is a four the one down

Answer 4

nope

Answer 5

k thanks

Answer 6

First, the answer is incorrect.
Second, you didn't learn how to do this multiplication.
What did you learn from this problem? Nothing.
Having answwers given to you is not much help because you don't learn much that way.
Having an incorrect answer given is even worse.

Answer 7

\( - \dfrac{7}{8} \times \left( -1 \dfrac{3}{7} \right) \)

First, we need to change the mixed numeral to a fraction.

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Here's the rule:

\( a \dfrac{b}{c} = \dfrac{ac + b}{c} \)

Here's an example:

Change \( 2 \dfrac{5}{7} \) into a fraction.

\(2 \dfrac{5}{7} = \dfrac{2 \times 7 + 5}{7} = \dfrac{19}{7} \)
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Now let's get back to the problem.

\( - \dfrac{7}{8} \times \left( -1 \dfrac{3}{7} \right) \)

\(= - \dfrac{7}{8} \times \left( - \dfrac{1 \times 7 +3}{7} \right) \)

\(= - \dfrac{7}{8} \times \left( - \dfrac{10}{7} \right) \)

The product of two negative numbes is positive.

\(= \dfrac{7 \times 10}{8 \times 7} \)

Simplify before multiplying:

\(= \dfrac{\cancel7 \times 10}{8 \times \cancel7} \)

\(= \dfrac{10}{8} \)

Reduce:

\(= \dfrac{5}{4} \)

Write as a mixed numeral:

\(= 1 \dfrac{1}{4} \)