Question

(0,5 plus 1 întreg 1 supra 2) ori 0,25
b) 1 supra 2 plus 3 supra 8 ori 4 minus 0, 1 (6) ori 3 supra 2
c) (3 supra 4 plus 0,75) ori 2 supra 3 minus 9 supra 50

Answer 1

a) 0,5=5/10=1/2
1 intreg 1/2=3/2
0,25=25/100=1/4
(1/2+3/2)×1/4 = 4/2×1/4 = 4/8=1/2

b) 0,1(6)=16-1/90=15/90=3/18=1/6
1/2+3/8×4-1/6×3/2=1/2+3/2-1/4=4/2-1/4=2-1/4 ( amplificãm pe 2 cu 4) = 8-1/4=7/4

c)0,75=75/100=3/4
(3/4+3/4)×2/3-9/50=6/4×2/3-9/50=1-9/50 (amplificãm pe 1 cu 50) = 50-9/50=41/50

sper ca te-am ajutat