# math

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Okay 5/9 + 7/9

I know you change the denominator so

5/6 = 15/18 or 3/18
7/9 = 14/18 or 2/18
which one?

• math -

You only change the denominator when they are not the same. You don't need to change anything about those fractions -- except simplify your answer.

• math -

I know I put them wrong I mean 5/6 + 7/9

• math -

5/6 = 15/18
7/9 = 14/18

• math -

which is 29/18 and so I change it to a mixed number?

• math -

Right. And then simplify.

• math -

is it 1 11/18???

• math -

Right. :-)

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