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b) 4,35 - 3/200=4,35-0,015=4,335
c) 7/8 - 0,78=0,875-0,78=0,095
d) 5,4 - 5/4=5,4-1,25=4,15
e) 1 2/5 - 0,85 + 3 7/20=7/5-0,85+3 7/20=1,4-0,85+3 7/20=0,55+67/20=
=0,55+3,35=3,9
f) 3 3/25 - (0,8 - 1/4)=78/25-(0,8-1/4)=3,12-(0,8-0,25)=3,12-0,55=2,57
33) Oblicz:
1,2 + 5/6=12/10+5/6=6/5+5/6=61/30=2 1/30
4,8 - 1 1/3=48/10-4/3=24/5-4/3=52/15=3 7/15
33,3 + 1/3 - 1,25=333/10+1/3-1,25=1009/30-125/100=1009/30-5/4=
=1943/60=32 23/60
2,25 - 1 1/3 - 1,5=225/100-4/3-1,5=9/4-4/3-1,5=11/12-15/10=11/12-3/2=
= -7/12
a) 1,245 + 3/4=1,245+0,75=1,995
b) 4,35 - 3/200=4,35-0,015=4,335
c) 7/8 - 0,78=0,875-0,78=0,095
d) 5,4 - 5/4=5,4-1,25=4,15
e) 1 2/5 - 0,85 + 3 7/20=1,4-0,85+3,35=3,9
f) 3 3/25 - (0,8 - 1/4)=3,12-(0,8-0,25)=3,12-0,55=2,57
33.