Question

Mark simplified three over five divided by five over eight.; his work is shown below. Identify where he made his error.

Original division problem: three over five divided by five over eight.

Step 1: three over five multiplied by eight over five.

Step 2: three times eight over five times five.

Step 3: twenty-four over five.

Step 4: four and four over five.

Answer 1

its step 2 right?

Answer 2

its step 2 or step 1. step 3 or 4 are not wrong.

Answer 3

when dividing fractions, you have to keep the rule in mind.
the KCF rule- Keep, Change and FLIP.

Keep the first fraction, change the sign and flip the second fraction. So it becomes-
3/5 x 8/5

Answer 4

so multiply the denominators and numerators and simplify the fractions

Answer 5

ermmm i dont know.. i just know its either step 1 thats wrong or step 2..

Answer 6

3/5 x 8/5 = 24/25 . can you simplify this anymore?

Answer 7

yes it becomes 4 4/5

Answer 8

thats step 4

Answer 9

which is correct

Answer 10

did u get that right?

Answer 11

yeah im pretty sure..

Answer 12

try it!

Answer 13

24 goes into 5 4 times. 24 because 20 goes 4 times into 5 then remainder of four.

Answer 14

24/25 is not 4 4/5

Answer 15

guitar i dont know where u got 25 from.. read the steps.

Answer 16

Step 1: three over five multiplied by eight over five.

Step 2: three times eight over five times five.

Step 3: twenty-four over five.

Step 4: four and four over five.

Answer 17

Thats only for improper fractions like if it were 25/24. Its 24/25.

Answer 18

but where did u get the 25.

Answer 19

Step 3: twenty-four over five.

Answer 20

yup.

Answer 21

ok step 3 is wrong then.. right?

Answer 22

thats the answer i got.

Answer 23

Simplify −0.6(−6.3).

−3.78
−3.63
3.63
3.78

Answer 24

so sure. try it!