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a) (-3\8)x(+5\7) b) (-2\5)x(+4\11)

Răspuns :

a) -3| 8 x 5|7 =>
=> -3 x 5 |8 x 7 =>
=> -15 | 56
b) -2|5 x 4|11 =>
=> -2 x 4 | 5 x 11 =>
=> -8 | 11
PS Am notat " | " ca linie de fractie