Răspuns :
2 / 7 + 14 / 11 + 5 / 7 + 8 / 11 = 3
= ( 2 / 7 + 5 / 7 ) + ( 14 / 11 + 8 / 11 ) = → aplic asociativitatea adunarii
= 7 / 7 + 22 / 11 =
= 1 + 2 =
= ( 2 / 7 + 5 / 7 ) + ( 14 / 11 + 8 / 11 ) = → aplic asociativitatea adunarii
= 7 / 7 + 22 / 11 =
= 1 + 2 =