Oblicz Ulamki :
(1\2+2\5)*2=
1\2*(4\5-1\4)=
(3\8+4\5)*1 3\4=
( 1 1\4-3\4) / 1\2=
(4 3\4- 3 1\2) *3,2=
( 8 1\2 + 7,25) / 2 1\4=
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(1/2+2/5)*2=(5/10+4/10)*2=9/10*2=18/10=1 8/10=1 4/5
1/2*(4/5-1/4)=1/2*(16/20-5/20)=1/2*11/20=11/40
(3/8+4/5)*1 3/4=(15/40+32/40)*7/4=47/40*7/4=329/160=2 9/160
(1 1/4-3/4)/1/2=(5/4-3/4)/1/2=2/4:1/2=1/2:1/2=0,5:0,5=0,1
(4 3/4-3 1/2)*3,2=(19/4-7/2)*3,2=(19/4-14/4)*3,2=5/4*3,2=5/4*32/10=5/4*16/5=90/20=9/2
(8 1/2+7,25)/ 2 1/4=(8,5+7,25)/2 1/4=15,75/2 1/4= 15,75 / 2,25=7