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janetasilvia
17

1)2 supra 3+2 supra 3:4 supra 3+1 supra 5 2)9:1 supra 9-80 intregi si 1 supra 9 3)(3 supra 4+5 supra 6-2 supra 3)x 12 supra 5

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(1) Răspunsuri
vvavec

1) 2/3+2/3:4/3+1/5 =2/3+2/3*3/4+1/5= =2/3+1/2+1/5= =20+15+6/30 =41/30 2) 9: 1/9- 80 intregi 1/9 =9*9-721/9= =81-729/9 =729-729/9= =0/9=0 3) (3/4+5/6-2/3)*12/5= =(9+10-8/12)*12/5= =11/12*12/5= =11/5=2,2

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