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Calculati (11supra 12-12supra 18 ) ÷1....5supra 9

Calculati 11supra 1212supra 18 15supra 9 class=

Răspuns :

(11/12 - 13/18) : 1 5/9 =

= (33 - 26)/36 x 9/14

= 7/36 x 9/14

= 1/8