Write a rational number in fraction form that is equivalent to -1.\overline{5}

.

Step-by-step explanation:

The given number is .

We need to find a rational number in fraction form that is equivalent to given number.

Let

    ...(1)

Multiply both sides by 10.

 ...(2)

Subtracting (1) from (2), we get

Divide both sides by 9.

Therefore, the required rational number is .

15

step-by-step explanation:

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50