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Va rog frumos este urgent!!!!
Efectuati:

a) 1/2 x 2/3 x 3/4 x ....... x 29/30:(1 intreg si 5/6 x 2 intregi si 1/5 - 5 intregi si 35/150)=
b) 3/4 x 4/5 x 5/6 x ........ x 44/45 x [3 intregi si 1/3 x 1/5+5 x (-2/3) x (-2/5)]=

Răspuns :

Bunicaluiandrei
a)    1/30 : (11/6 ·11/5 - 157/50) = 1/30·150/(605 - 471) = 50/134 = 25/67
b)  3/45 ·[ 10/3 ·1/5 + 5·2/3 ·2/5] = 1/15 ·(2/3 +4/3) = 1/15 · 2 = 2/15

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