1)Calculaţi folosind factorul comun:
a)[tex] \frac{1}{44} [/tex]×(- [tex] \frac{3}{8} [/tex])+[tex] \frac{5}{6} [/tex]×[tex] \frac{1}{44} [/tex]=
b)(-0,7)×[tex] \frac{3}{14} [/tex]+[tex] \frac{5}{21} [/tex]×0,7- [tex] \frac{8}{35} [/tex]×0,7=
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