Jonathan says that when you add 7
2
3
to
2
2
3
, you must add the whole numbers together first (
7
+
2
=
9
). Then you just add the numerators together (
2
+
2
=
4
), and you add the denominators together (
3
+
3
=
6
). So the answer is
9
4
6
.

Unfortunately, Jonathan's strategy is incorrect. Solve this problem, and then briefly explain the flaw in Jonathan's reasoning.

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