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Jill incorrectly subtracted the two mixed numbers to find how much more blue fabric than purple fabric she should buy. Her work is shown below. 4 1 third - 3 2 third = 12 thirds…

Jill incorrectly subtracted the two mixed numbers to find how much more blue fabric than purple fabric she should buy. Her work is shown below. 4 1 third - 3 2 third = 12 thirds…
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Jill incorrectly subtracted the two mixed numbers to find how much more blue fabric than purple fabric she should buy. Her work is shown below.

4 1 third - 3 2 third = 12 thirds - 9 thirds


Why is Jill's work incorrect?

asked
User Naman Goel
by
7.6k points

1 Answer

2 votes
41-32=9
12-9=3

9 is not equal to 3
answered
User Sameer Ahmed S
by
8.8k points
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