Question

Oblicz
8+2×4,2-3,2=
6 1/3-1/3×1 4/5+2=
3 3/4×4/9-4/9+4=
(1/2+1/3)×6-2×0,1=
(12 1/5-4 2/3)÷(1 3/4×8)=

/- kreska ułamkowa
Proszę o rozpisanie tego

Answer 1

8+2×4,2-3,2=8+8,4-3,2=16,4-3,2=13,2

6 1/3-1/3×1 4/5+2=19/3-1/3*9/5+2=19/3-3/5+2=95/15-9/15+30/15=86/15+30/15=
=116/15=7 11/15

3 3/4×4/9-4/9+4=15/4*4/9-4/9+4=5/3-4/9+4=15/9-4/9+36/9=11/9+36/9=47/9=5 2/9

(1/2+1/3)×6-2×0,1=(3/6+2/6)*6*1/10=5/6*6*1/10=5*1/10=5/10=1/2

(12 1/5-4 2/3)÷(1 3/4×8)= 61/5-14/3):(7/4*8)=(183/15-70/15):14=113/15*1/14=113/210

Answer 2

A)8+8,4-3,2=16,4-3,2=13,2
b)6 1/3-1/3*9/5+2=6 1/3-9/15+2=6 1/3-3/5+2=6 5/15-9/15+2= 5 11/15+2=7 11/15
c)15/4*4/9+3 5/9= 15/9+3 5/9=3 20/9=5 2/9
d)(3/6+2/6)*6-2/10=5/6*6-2/10=5-2/10=4 8/10= 4 4/5
e)(12 3/15-4 10/15)÷(7/4*8)=7 8/15÷14=8/15*1/14=4/15*1/7=4/105