2,5x 4 1\2 - 5 11\20 : 0.9=
( 5\6 +1\3 ): (2 2\3-1,75 )
Plis zróbciee . ; D
KC
2,5*4 1/2-5 11/20:0,9=2 5/10*4 1/2-5 11/20:9/10=25/10*9/2-111/20*10/9=225/20-111/18=11 5/20-6 2/18=11 1/4-6 1/6=11 3/12-6 2/12=5 1/12
(5/6+1/3):(2 2/3-1,75)=(5/6+2/6):(1 20/12-1 9/12)=7/6:11/12=7/6*12/11=14/11=1 3/11
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2,5*4 1/2-5 11/20:0,9=2 5/10*4 1/2-5 11/20:9/10=25/10*9/2-111/20*10/9=225/20-111/18=11 5/20-6 2/18=11 1/4-6 1/6=11 3/12-6 2/12=5 1/12
(5/6+1/3):(2 2/3-1,75)=(5/6+2/6):(1 20/12-1 9/12)=7/6:11/12=7/6*12/11=14/11=1 3/11