\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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\(\dfrac{2}{5}-\dfrac{3}{10}\)
\(=\)
10
7
8
9
4
5
6
1
2
3
C
0
,
\(-\)
10
7
8
9
4
5
6
1
2
3
C
0
,
\(=\)
10
7
8
9
4
5
6
1
2
3
C
0
,
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