Question

By what rational number should −5 /7 be multiplied to get 10?​

Answer 1

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Maths

By what rational number should we multiply −15/56 to get −5/7?

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Let us consider x to be multiplied to the number given i.e.

56

−15

×x=

7

−5

x=

7

−5

÷

56

−15

Convert ÷ to ×

x=

7

−5

×

−15

56

x=

7×−15

−5×56

x=

−105

−280

By dividing further by 35 into lowest terms we get,

105

280

=

3

8

∴

3

8

has to be multiplied to

56

−15

to get

7

−5

Answer 2

Answer:

(-14) is the answer

Step-by-step explanation:

Let x be the number

ATQ,

(-5)/7 × x=10

(-5) × x=10×7

x=(10×7)/(-5)

x=(-14)

Hope it is helpful to you..