Question

Express -3/5 as a rational number with denominator-40

Answer 1

$\frac{ - 3}{5}$

multiply both numerator and denominator by 8

$\frac{ - 3 \times 8}{5 \times8} \\ = \\ \frac{ - 24}{40}$

now

just shift the negative sign to denominator

$\frac{24}{ - 40}$

so final.answer is 34/-40

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Answer 2

Answer:

-3×8÷5÷-8

-24÷-40

= -3÷5