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Calculați:
a)1/9×2/5×18/7
b)2/7×3/10×14/10
c)²1/2×3/5×1/2
d)⁴3/7ײ1/3
e)⁵׳1/4×5/8
f)²1/3׳1/2×⁴
g)1/5ײ1/2³
Vă rog repede dau coroana ​