(2.5)(−1.3)

-3.25

At West High School, 2/5
of the students play a sport. Of the students who play a sport, 1/4
play football. What fraction of the students at West High School play football?

To find the fractions of students who play football, you multiply 2/5 by 1/4:

(2/5) * (1/4) = 2/20 = 1/10.

So, 1/10 of the students at West High School play football.

Divide and simplify.

−2 1/7÷−1/2

First, convert -2 1/7 to an improper fraction, we get -15/7
Then division of fractions is the same as multiplication by the reciprocal of the divisor. The reciprocal of -1/2 is -2/1
So, -15/7 divided by -1/2 is equivalent to -15/7 multiplied by -2/1.
(-15/7) * (-2/1) = 30/7.
When simplified it is 4 2/7.

Divide and simplify.

−2/17÷−12

When dividing by a number, you can multiply by its reciprocal. The reciprocal of -12 is -1/12.

So, −2/17 ÷ −12 = −2/17 * -1/12 forms into 2/17 * 1/12 = 2/204.

When simplifying this fraction, it remains 2/204 or 1/102.

Divide and simplify.

−2/17÷−1/2

When dividing by a fraction, you can multiply by its reciprocal. The reciprocal of -1/2 is -2/1.

So, −2/17 ÷ −1/2 becomes −2/17 * -2/1.

This simplifies to 4/17 (since the negative signs cancel out).

5.36 × -3.1

-16.616

−70.55 ÷ (0.5) =

-141.1

−0.539 ÷ (−0.11) =

4.9

Divide and simplify.

−1/6 ÷ 2/9

When dividing by a fraction, you can multiply by its reciprocal. The reciprocal of 2/9 is 9/2.

So, −1/6 ÷ 2/9 = −1/6 * 9/2.

This simplifies to -3/4.

413÷−115

-3.591304347826087

4/13÷−1/15

When dividing by a fraction, you can multiply by its reciprocal. The reciprocal of -1/15 is -15/1.

So, 4/13 ÷ -1/15 = 4/13 * -15/1.

This simplifies to -60/13 or approximately -4.61538.

4 1/3÷−1 1/5

First, convert the mixed numbers 4 1/3 and -1 1/5 to improper fractions.

4 1/3 = 13/3
-1 1/5 = -6/5

Then, the division of fractions is the same as multiplication by the reciprocal of the divisor.

So, 13/3 ÷ -6/5 = 13/3 * -5/6 = -65/18

This can be converted to a mixed number, -3 11/18.