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Mary136
a fost răspuns

calculati : a). (1/7 + 7/11+2010/2011) + ( 6/7 + 4/11 - 2010/2011 ) b). ( 5/3 + 7/5 + 9/7 )- ( 2/3 + 2/5 + 2/7 ) .

Răspuns :

Saoirse1
1/7+7/11+2010/2011+6/7+4/11-2010/2011=7/7+11/11=1+1=2;;; 5/3+7/5+9/7-2/3-2/5-2/7=3/3+5/5+7/7=1+1+1=3

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