Question

1. a) 4,2 + 1,3 • 6

b) 3 supra 2 + 5 : ( 12 supra 5 + 0,(3) )

c) (12,5 - 5 ) • 2 supra 15

Dau coroana la cel mai inteligent raspuns !!​

Answer 1

a) 4,2+1,3×6=

4,2+7,8=

12

b) 3/2+5:(12/5+0,(3) )=

3/2+5:(12/5+3/9)=

3/2+5:41/15=

3/2+5×15/41=

3/2+75/41=

273/82

c)(12,5-5)×2/15=

7,5×2/15=

15/2×2/15

simplifici 2 cu 2 si 15 cu 15 =1