ADD:
-(7/35)+(22/39)
I THINK TEST/QUIZ HAS WRONG ANSWER
IT SAYS (5/13)
I SAY (29/39)
COULD SOMEONE CONFIRM FOR ME? STILL NEW TO THESE KIND OF PROBLEMS
THANK IN ADVANCE
SORRY ABOUT CAPS ITS STUCK

Question

ADD:
-(7/35)+(22/39)
I THINK TEST/QUIZ HAS WRONG ANSWER
IT SAYS (5/13)
I SAY (29/39)
COULD SOMEONE CONFIRM FOR ME? STILL NEW TO THESE KIND OF PROBLEMS
THANK IN ADVANCE
SORRY ABOUT CAPS ITS STUCK

bibby · Answer

What's the common denominator?

anonymous · Answer

39

bibby · Answer

STart by listing the factors.
13: 1 13
39: 1 3 13 39

Exactly.

So now multiply 5/13 by 3/3

anonymous · Answer

SORRY IT SHOULD HAVE BEEN (7/39)

bibby · Answer

5     3
-- * -- = ?
13   3

btaylor · Answer

@mybaby55 I think you added instead of subtracting. You may have ignored the - in front of the 7/39; if you rewrite it as a subtraction problem, you get 22/39-7/39 which is 15/39, simplifying to 5/13.

bibby · Answer

whoops completely misread that.
-(7/35)+(22/39) = 22/39 - 7/35

anonymous · Answer

THANKS GUYS