Can someone help me with dividing fractions? (Gold medal for help!)
what ya got ?
to divide fractions, you " flip " what you are dividing by, then just multiply
\[2/3 \div 100\]
example : 2/3 divided by 1/2 = 2/3 * 2/1 = 4/3 3 divided by 1/4 = 3 * 4/1 = 12 ok...your problem... 2/3 divided by 100 = 2/3 * 1/100 = 2/300 which reduces to 1/150 you see how I " flipped " what I was dividing by. Make sure you do not " flip " the other number, because that would be incorrect.
i simple process would be to equate it to some unknown number, n. and work some math \[2/3 \div 100=n\] \[2/3=100n\] \[2=300n\] \[2/300=n\]
Hold on im confused, So 1/100 times 2/3?
yes.....2/3 divided by 100 (100 is the same as 100/1) flip what you are dividing by, then multiply 2/3 * 1/100 = 2/300 which reduces to 1/150
I dont need he answer btw, i just need help understanding how to solve it, so I can get the answer
Oh so use the KCC rule?
I do not know what the KCC rule is
lol, neither do i. personally i would just use math to solve it.
Keep,Chane,Change, meaning, keep the first fraction, change the divide sign to multiplication, and change the other fraction, meaning (Flip it) like recipical
thats it....
or Keep it, switch it, flip it rule.
i find it rather odd that people want to make up 100 different 'rules' to work 5 basic math operations.
keep the first fraction....change division sign to multiplication....flip what you are dividing by...then multiply. Now if you have a mixed number, be sure and change it to an improper fraction
Lol, ikr, but i guess the reason why is to make it simpler.
yeah, simpler :) they teach FOIL, and then the kids ask how to FOIL something. .. so much for simpler eh
lol...thats true
Oh crud im confused again.
confused about what ?
2/3\[\div 100\]
HOLY MOLY! I just ended up with 50 over 3 xD
2/3 divided by 100 keep 2/3....change division sign to multiplication 2/3 x flip what you are dividing by...100 is the same as 100/1...when flipped = 1/100 so 2/3 * 1/100
OHHHHHHHHH 100 OVER 1 ohhhh! okay becuz i had 1/100
to math it out, simply some number, say n:\[\frac{2/3}{100}=n\] multiply both sides by 100 \[\frac{2}{3}=100n\] multiply both sides by 3 \[2=300n\] divide both sides by 2 \[1=150n\] divide both sides by 150 \[\frac{1}{150}=n\]
thats another way....do whichever way is easier for you to understand
Hold on trying to figure it out.
WAIT WAIT WAIT, then are you supposed to n reduce?
n is already reduced by the time you get to the end of it ... 1 and 150 have no GCF other than 1
example : 1/5 divided by 10....10 is the same as 10/1 1/5 * 1/10 (see how I flipped what I was dividing by) and yes, when you can reduce....reduce look at this one... 1 2/3 divided by 6 (change to improper fraction, and 6 is the same as 6/1) 5/3 * 1/6 = 5/18 understand ?
WAAHHHHHH NO! >_<!
good luck ;)
UGH SO HARD TO UNDERSTAND! Okay okay, can you just break it up like First,second,third?
you pretty much did with that KCC thing
Instead of sending the WHOLE DANG thing.
OMG BUT I GOT 2/300!
2/3 divided by 100 you understand that 100 is the same as 100/1. Any whole number is that whole number over 1. Do you understand that ?
yes
so we have 2/3 divided by 100/1 keep the 2/3 change the division sign to multiplication " flip " what you are dividing by, so 100/1 becomes 1/100 and now multiply 2/3 * 1/100
okay hold on
2/300 is what i got
correct, but when it can be reduced, do that. 2/300 reduces to 1/150
OHHHHHHHHHHH
Thats what is said, reduce
Thanks!
i get it now
anytime :)
Join our real-time social learning platform and learn together with your friends!