Ask your own question, for FREE!
Mathematics 22 Online
OpenStudy (anonymous):

11/12 - 2/3 =?

OpenStudy (lilg132):

ok so multiply the denominators first

OpenStudy (anonymous):

6

OpenStudy (lilg132):

the denominators are the bottom numbers

OpenStudy (anonymous):

so I do 3 * 12

OpenStudy (lilg132):

yes you do peacelover

OpenStudy (anonymous):

ok hang on

OpenStudy (anonymous):

23

OpenStudy (anonymous):

24

OpenStudy (lilg132):

correct 24

OpenStudy (lilg132):

so now we know what the denominator will be

OpenStudy (anonymous):

but it has to be 12 or 6 lilg 123

OpenStudy (anonymous):

It's done but please don't give hir the answer right away.. let hir work one the problem on hir own ..

OpenStudy (lilg132):

now multiply the first numerator by the second denominator and multiply the second numerator by the first denominator numerator = top number denominator = bottom number

OpenStudy (anonymous):

huh?

OpenStudy (lilg132):

what is the numerator on the first fraction?

OpenStudy (anonymous):

1

OpenStudy (lilg132):

11/12 - 2/3 These are the fractions

OpenStudy (lilg132):

the numerator of the first fraction is? numerator is the top number of the fraction denominator is the bottom number of the fraction REMEMBER WHAT THEY MEAN

OpenStudy (anonymous):

i know what hey mean I gave u the numarator for the first one it's 1

OpenStudy (lilg132):

how ? 11/12 the numerator is 11

OpenStudy (lilg132):

the numerator is the top number of the fraction which is 11

OpenStudy (anonymous):

oh yeah sorry I was looking at the wrong one ur right lilg 123

OpenStudy (lilg132):

ok so let me try again multiply the numerator of the first fraction by the denominator of the second fraction

OpenStudy (anonymous):

33

OpenStudy (lilg132):

correct and remember we already worked out the new denominators before which was 24 so the first fraction will be?

OpenStudy (anonymous):

33/24?

OpenStudy (lilg132):

correct

OpenStudy (lilg132):

now to get the second fraction we need to do multiply the second fractions numerator by the first fractions denominator

OpenStudy (anonymous):

24

OpenStudy (lilg132):

correct so now we have the two fractions which are?

OpenStudy (anonymous):

33/24 some thing 24

OpenStudy (lilg132):

33/24 - 24/24

OpenStudy (lilg132):

do you understand how i got that?

OpenStudy (anonymous):

9/24 and I think so

OpenStudy (lilg132):

yes correct

OpenStudy (anonymous):

but the bottom number has to be 12 or 6 remeber?

OpenStudy (anonymous):

remember*

OpenStudy (anonymous):

so now what

OpenStudy (anonymous):

would it be 9/12?

OpenStudy (anonymous):

i mean 3/12

OpenStudy (lilg132):

argh we made a mistake lol

OpenStudy (lilg132):

the denominators were supposed to be different

OpenStudy (lilg132):

12 * 3 ?

OpenStudy (anonymous):

oh

OpenStudy (anonymous):

48

OpenStudy (lilg132):

no

OpenStudy (anonymous):

36

OpenStudy (lilg132):

yes

OpenStudy (lilg132):

the numerators were correct

OpenStudy (lilg132):

so the fractions are?

OpenStudy (anonymous):

33/36 ans 24/36

OpenStudy (lilg132):

correct now minus it from eachother?

OpenStudy (anonymous):

ok that is 9/36

OpenStudy (lilg132):

yes correct

OpenStudy (anonymous):

so now we have to make the bottom number 12 or 6

OpenStudy (lilg132):

yes now to do that we divide both numbers by something which fits into both

OpenStudy (lilg132):

what can you divide 9 by?

OpenStudy (anonymous):

3

OpenStudy (lilg132):

correct !

OpenStudy (lilg132):

so divide both sides by 3

OpenStudy (anonymous):

1

OpenStudy (lilg132):

no thats wrong 9/3 = ? 36/3 = ?

OpenStudy (anonymous):

4

OpenStudy (lilg132):

if your finding it difficult just remember this how many times can 3 go into 9? how many times can 3 go into 36?

OpenStudy (anonymous):

3 and 9

OpenStudy (lilg132):

you got the first one right which is 3

OpenStudy (lilg132):

how many times does 3 go into 36?

OpenStudy (anonymous):

9 cuz 3 times 9 is 36

OpenStudy (anonymous):

i mean 4

OpenStudy (lilg132):

yes but we're not using 4 we're using 3 so how many times does 3 go into 36

OpenStudy (lilg132):

36/ 3 =?

OpenStudy (lilg132):

something multiplied by 3 = 36

OpenStudy (anonymous):

Please take this discussion to somewhere else . this is giving me pop ups !!!

OpenStudy (lilg132):

ok let me try and help you another way

OpenStudy (anonymous):

12

OpenStudy (lilg132):

we have 36 and we need to work out how mnay times 3 goes into how many times does 3 go into 3 ? how many times does 3 go into 6? 1 and 2 which means 12

OpenStudy (lilg132):

yes correct so the fraction we now have is?

OpenStudy (anonymous):

9/12

OpenStudy (lilg132):

noo

OpenStudy (lilg132):

we had before 9/36

OpenStudy (lilg132):

we need to divide both numbers by 3

OpenStudy (anonymous):

3/12

OpenStudy (lilg132):

correct !!!

OpenStudy (anonymous):

thank you, how old r u?

OpenStudy (lilg132):

lol old enough talk on the chat

OpenStudy (anonymous):

plz tell me and I'll tell u how old I am!

OpenStudy (lilg132):

dont forget to click good answer :)

OpenStudy (lilg132):

if you ask me on the chat i might tell you

OpenStudy (anonymous):

we r on chat

OpenStudy (lilg132):

on the bottom right hand corner it says mathematics open that and chat there its in some green colour

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!