Question

How do i figure out the common denominator with fractions , I'm confused .

Answer 1

say u have a problem like this:
\[\frac{1}{2}+\frac{2}{3}\]

Answer 2

you need common denominators to add them

Answer 3

true but how would i solve it?

Answer 4

sorry, had to go for a minute

Answer 5

your denominators are 2 and 3

find the LCM of each.

what is the smallest number that 2 and 3 are both factors of?

the answer is 6

Answer 6

Now look at your fractions again

Answer 7

what times 2 equals 6?

Answer 8

2*3=6
multiply the denominator by 3 and the numerator by 3

Answer 9

you get 3/6

Answer 10

Now look at the second fraction.

Answer 11

what times 3=6?
2*3=6
so multiply the numerator and the denominator by 2 this time
you get 4/6

Answer 12

And now you have common denominators and can tell that the answer is 7/6, or 1 and 1/6

Answer 13

Hope this helps!

Answer 14

so i add 4/6 and 3/6?

Answer 15

how would i get 1 1/6? sorry i know I'm difficult .

Answer 16

No prob. convert the improper fraction to a mixed number

Answer 17

\[\frac{7}{6}=1 \frac{1}{6}\]

Answer 18

How many times does 6 go into 7?

Answer 19

1 time. So take one whole- one 6/6- out of the equation, you are left with 1/6

Answer 20

since the 6/6 is a whole, it becomes a 1, and you have 1/6

Answer 21

if your fraction was, say, 14/6

Answer 22

then 6 goes into 14 two times
\[\frac{6}{6}+\frac{6}{6}+\frac{2}{6}=\frac{14}{6}\]

Answer 23

so you'd have 2 2/6
got it?

Answer 24

yea , thanks man how could i add you i don't know how to use this i just needed help with this pellet.

Answer 25

Your welcome

Answer 26

but umm how do i do the subtraction