Question

i need some help. find the percentage decrease from 10 1/2 to 8 2/5

Answer 1

@Shadow

Answer 2

@Eiwoh2

Answer 3

Are you still here?

Answer 4

yes

Answer 5

Ok so I am pretty sure that I have figured it out

Answer 6

Give me a moment while I explain

Answer 7

So if you take both fractions and you convert them into a percentage what do you get?

Answer 8

The first one is going to be 1050%

Answer 9

350 and 437

Answer 10

Is rthat what you get when you take them both and put them into a fraction?

Answer 11

Percentage*

Answer 12

mhm

Answer 13

oh wait i need to add them?

Answer 14

It should be 1050% and 840%

Answer 15

oh

Answer 16

You take the fractions and put them into an percentage and then divide the percentage together

Answer 17

So take 1050% and divide it by 840%

Answer 18

1.25

Answer 19

Your answer should be 250%

Answer 20

@Shadow confirm my answer please?

Answer 21

That should be your answer but I just wanted to confirm it

Answer 22

my idea

10 1/2 = 21/2

8 2/5 = 42/5

21/2 mean 100%
42/5 mean x%

cross multiplie and get x = [(42/5)*100]/(21/2) = (42*20)/(21/2) = (840*2)/21 =
=1680/21 = 80%

so the percentage decrease from 10 1/2 to 8 2/5 is 100% - 80% = 20%

hope this is understandably