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Mouse123
a fost răspuns

calculati in cel mai rational mod
a) 7pe16-11pe42-9pe16+17pe42
c) -1.23+2.14+7.38-5.77+1.62

Răspuns :

Clothos
a) 7/16-11/42-9/16+17/42=
(7-9)/16 + (-11+17)/42= -2/16 + 6/42= -1/8 +1/7=-7/56+8/56=(-7+8)/56=1/56
c) -1.23+2.14+7.38-5.77+1.62= -1.23-5.77+7.38+1.62+2.14=
-7+9+2.14=2+2.14=4.14

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