oblicz, pamiętaj o kolejnośći rozwiązywania ;) legenda: /- kreska ułamkowa x- znak mnożenia a) 1 i 5/9 : 1 i 1/3 x 0,75=? b) 3 i 1/3 - 1/3 x 0,6 =? c) 3 i 4/9 - 1 i 2/3 x 1,8 =? d) 4,5 x 5 i 5/9 + 6,4 x 3/8 =? plz! na jutro ; >
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a) 1 i 5/9 : 1 i 1/3 x 0,75=14/9:4/3*75/100=14/983/4*75/100=7/3*1/2*3/4=
7*1/2*1/4=7/8
b) 3 i 1/3 - 1/3 x 0,6 =10/3-1/3*6/10=10/3-1/5=50/15-3/15=47/15=3 2/15
c) 3 i 4/9 - 1 i 2/3 x 1,8=3 4/9-5/3*18/10=3 4/9-6/2=3 4/9-3=4/9
d) 4,5 x 5 i 5/9 + 6,4 x 3/8 =45/10*50/9+64/10*3/8=585+8*3/10=25+2,4=27,4
a) 1 i 5/9 : 1 i 1/3 x 0,75=14/9:4/3*75/100=14/983/4*75/100=7/3*1/2*3/4=
7*1/2*1/4=7/8
b) 3 i 1/3 - 1/3 x 0,6 =10/3-1/3*6/10=10/3-1/5=50/15-3/15=47/15=3 2/15
c) 3 i 4/9 - 1 i 2/3 x 1,8=3 4/9-5/3*18/10=3 4/9-6/2=3 4/9-3=4/9
d) 4,5 x 5 i 5/9 + 6,4 x 3/8 =45/10*50/9+64/10*3/8=585+8*3/10=25+2,4=27,4