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3,75*2,4-4,375=
9-4,375=4,625
b) (1/2)³+1 1/2:3/4=
1/8+3/2*4/3=
1/8+2/1=
1/8+16/8=17/8=2,125
c) 5/7*1 3/4-(1/2)²=
5/7*7/4-1/4=
5/4-1/4=4/4=1
d) 3 1/4-1 1/2+2 7/8=
13/4-3/2+23/8=
26/8-12/8+23/8=37/8=4,625
2.=1/8+3/2:3/4=1/8+3/2*4/3=
1/8+2=2 1/8
3.=5/7*7/4-1/4=5/4-1/4=1
4.=3 2/8-1 4/8+2 7/8=1 6/8+
2 7/8=3 13/8=4 5/8
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