Question

2,4,5

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Answer 1

Răspuns:

2) a=2\/3;7|/2;4\/5;-10\/11;-2\/7;-9\/6

b=5\/3;-4\/2;7\/5;-14\/11;3\/7;4\/6

a+b=7\/3;3\/2;11\/5;-24\/11;1\/7;-5\/6

a-b=-3\/3;11\/2;-3\/5;4\/11;-5\/7;-13\/6

-b=-5\/3;4\/2;-7\/5;14\/11;-3\/7;-4\/6

4) a.2\/3×3\/2×\/6=2×3×6=36

b.4\/5×3\/5=4×3×5=60

c.6\/11:2\/11=3

d.108\/19:36\/19=3

5) a.6\/12:3\/2=2\/6

b.-10\/18:5\/6=-2\/3

c.27\/9:9\/3=3\/3

d.4\/3×5\/2=20\/6

e.-2\/10×5\/5=-50\/2

f.8\/8×4\/2=8×4×2×2=64×2=128

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