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Andreealarisa111
a fost răspuns

A.) 1- 7pe 9 + 5pe18
b.)5pe6 x 3pe10 + 3pe4
c.)21pe25 :14pe5 - 1pe5

Răspuns :

Renatemambouko
a) 1- 7/ 9 + 5/18=(18-14+5)/18=9/18=1/2

b) 5/6 x 3/10 + 3/4=1/4+3/4=1

c) 21/25 :14/5 - 1/5= 21/25 x 5/14-1/5=3/10-1/5=(3-2)/10=1/10

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