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The teacher is saying the answer is 7/15. how did she get that?

The teacher is saying the answer is 7/15. how did she get that?
asked 56.0k views
1 vote
The teacher is saying the answer is 7/15. how did she get that?

The teacher is saying the answer is 7/15. how did she get that?-example-1
asked
User Anders Martini
by
9.0k points

1 Answer

4 votes
i think this is how
you change the - to a +
8/12 + -1/5 then
2/3+-1/5 then
10/15+-3/15

10+-3
---------
15

7/15
answered
User Serine
by
8.3k points
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