Question

1/2 + 4/9
I'm getting 5/18 but my calculator says 17/18 and I don't know where I'm going wrong.

Answer 1

Convert to a common denominator. Try 18

Answer 2

yeah ive got 18 as my denominator but my numerator is wrong according to my calculator and i dont understand where im going wrong :/

Answer 3

\[\huge \frac{ 1 }{ 2 } = \frac{ ? }{ 18 }\]

Answer 4

17? 16? i really do not know.

Answer 5

the online course is pulling numbers out of thin air ..

Answer 6

17/18

Answer 7

it's not thin air rofl.
\[\huge \frac{ 1 }{ 2 } = \frac{ 1*9 }{ 2*9 } = \frac{ ? }{ 18 }\]

Answer 8

is that times ?

Answer 9

freaking seems it.

Answer 10

it looks like it
mine is plus

Answer 11

\[is \it \]

Answer 12

okay hang on. I need to show working so from 1/2 + 4/9 gives the common denominator of 18

Answer 13

now what do I do to get the 17 that you got ?

Answer 14

yeah the *s are times

Answer 15

I'm sure aspen has it though

Answer 16

9 times what = 18

Answer 17

2

Answer 18

4* 2 =?

Answer 19

8

Answer 20

2 times 18 = what

Answer 21

36

Answer 22

2times what = 18

Answer 23

9

Answer 24

9+8+?

Answer 25

re-read this if you still don't get it http://www.mathsisfun.com/fractions_addition.html

Answer 26

9+8=?

Answer 27

17

Answer 28

thanks you !!!!!

Answer 29

your welcome