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Subjects
Mathematics State Board
Class 8
Numbers
Four Basic Operations on Rational numbers
2.
The sum of the negative fraction if the denominators are the same
Exercise condition:
3
m.
Calculate the following expression:
−
40
17
+
−
42
17
The sum is
i
i
i
(
Note
: write the sign (\(+\) or \(-\)) in the first box.)
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