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7/20+(-11/12) I I had 77/220 and that was wrong. I cant figure this out.

7/20+(-11/12) I I had 77/220 and that was wrong. I cant figure this out.
asked 98.8k views
5 votes
7/20+(-11/12)

I I had 77/220 and that was wrong. I cant figure this out.

asked
User Levi Moreira
by
8.0k points

2 Answers

3 votes
7/20 + (-11/12) =
7/20 - 11/12 =
84/240 - 220/240 =
-136/240 reduces to -17/30
answered
User Willy Tarreau
by
7.4k points
7 votes
The answer you put is wrong. It should be:

-17/30
answered
User Thorsten Viel
by
8.6k points
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