Oblicz, pamietajac o kolejnosci (Tu maja byc obliczenia)
a ) 4 i 1/5 * 2,7 : 5,67 =
b) 1,4 : 1/2 +1/30 * 7,5 =
c) (8 i 1/2 - 4,75) : 15 =
d) (0,76 : 4/5 - 0,5) * 1 i 1/3 =
e) [(13 - 11 i 1/2) : 0,03] * 0,026 =
f) [1i 5/7 : (3,6 - 1,8 * 1 i 1/3)] * 1,4 =
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a) 4 i 1/5 * 2,7 : 5,67 = 21/5 * 27/10 : 567/10= 567/50 : 567/10= 567/10*10/567=1/5
b)1,4 : 1/2 +1/30 * 7,5 =14/10 1,4 : 1/2 +1/30 * 7,5 =1/2+1/30*75/10=
10/14*1/2+1/4=14/5+1/4=56/20+5/20=61/20=3 1/20
a) 4 i 1/5 * 2,7 : 5,67=21/5*27/10=567/50:5,67=50/1*100/567=567/2=283 i 5/10=283 i 1/2
b)1,4:1/2+1/30*7,5=14/10*2/1+1/30*75/10=14/5+2/15=42/15+2/15=44/15=2 i 14/15