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f) (3 1/3+1,25):(3 1/3-1,25)=(10/3+1,25):(3 1/3-1,25)=55/12:(10/3-1,25)=55/12:25/12=2,2
h) 1+(4 2/5:2 3/4) - (2 3/4:4 2/5)=1+22/5:11/4-2 3/4:4 2/5=1+8/5-2 3/4:4 2/5=13/5-11/4:22/5=13/5-5/8=79/40=1 39/40
i) ( 5 1/2*3 1/2):(13/30*(3,11+1,09)=(11/2*7/2):(3,11+1,09)=5,5*3,5:13/30(3,11+1,09)=19,25:1,82=275/26=10 15/26
j) (2 1/8-1 2/3):(1 3/8):1 3/4=(17/8-5/3):1 3/8:1 3/4=11/24:11/8:1 3/4=1/3:7/4=4/21
Zad. 65
a) ((1,85+0,35)*7,7):(3-2,986)=2,2*7,7:(3-2,986)=16,94:0,014=1210
b) (4 5/12-(4:2 2/3)) * 1,8=(53/12-4:8/3)*1,8=(53/12-1,5)*1,8=35/12*1,8=5,25
c) (2 1/8-1 2/3):(1 3/8:1 1/3)=(17/8-5/3):1 3/8:1 1/3=11/24:11/8:4/3=11/24:33/32=4/9
d) 1 9/16*3,2+(48:(3/5:7/8))=25/16*32/10+48:3/5:7/8=25/16*16/5+48:3/5:7/8=5+48:24/35=5+70=75
e) (175*3 1/21+1/6):(0,36+2/3)=(175*64/21+1/6):(0,36+2/3)=(1600/3+1/6):(0,36+2/3)=533,5:77/75=7275/14=519 9/14
f) (2,4*(5/6)^2 -1/6):(1/3+1,5)=(2,4*25/36-1/6):(1/3+1,5)=(5/3-1/6):(1/3+1,5)=1,5:11/6=9/11
g) (1,4+1 2/3:8 1/3):(1 2/9-1 1/8)=(1,4+5/3:25/3):(1 2/9-1 1/8)=(1,4+1/5):(1 2/9-1 1/8)=8/5:(11/9-9/8)=8/5:7/72=576/35=16 16/35
h) ((2,25-1 5/6) *2,4):(1 1/9*(5,15-4,25)=tu źle nawiasy coś są...
i) (1,2:0,375):(6,64-21/40:2 3/16)=3,2:(6,64-21/40:35/16)=3,2:(6,64-0,525:35/16)=3,2:(6,64-0,24)=3,2:6,4=0,5