Question

By which number -7 /25 should be divided to get -1/15?

Answer 1

Answer:

21/5

Step-by-step explanation:

if a/b = c, then b=a/c

in other words:

divide -7/25 by -1/15 to get the answer

It also helps to use the fact that a/b / c/d = a/b * d/c

-7/25 / -1/15 = -7/25 * -15/1

= 105 / 25

= 21 / 5

Answer 2

Answer:

$4 \frac{1}{5}$

Step-by-step explanation:

$\frac{ - 7}{25} \div x = \frac{ - 1}{15}$

$x = \frac{ - 7}{25} \div \frac{ - 1}{15}$

$= \frac{7}{25} \times \frac{15}{1}$

$= \frac{21}{5} = 4 \frac{1}{5}$