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[Załącznik]
a)3 2/7*5=23/7*5=115/7=16 3/7
b)-4 1/6*(-2 2/5)= -25/6*(-12/5)=-10
c)2 1/7:5= 15/7*1/5=3/7
d) 5 / (3 1/8) = 5*8/25=8/5
e)5 5/6:3 1/9=35/6:28/9=35/6*9/28= 5/2 * ¾ = 15/8
f)6 7/8+ 2 3/4=55/8+11/4=58/8+22/8=80/8=10
g)-7 8/15+ 2 5/6=-113/15+17/6=-226/30+85/30=-141/30=-4 21/30
h)8,23+3,99=12,22
i)-7,6+2,92=-4,68
j)3,8*(-0,7)=-2,66
k)4,8:0,06=80
l)0,42:(-3)=-0,14
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a)3 2/7*5=23/7*5=115/7=16 3/7
b)-4 1/6*(-2 2/5)= -25/6*(-12/5)=-10
c)2 1/7:5= 15/7*1/5=3/7
d) 5 / (3 1/8) = 5*8/25=8/5
e)5 5/6:3 1/9=35/6:28/9=35/6*9/28= 5/2 * ¾ = 15/8
f)6 7/8+ 2 3/4=55/8+11/4=58/8+22/8=80/8=10
g)-7 8/15+ 2 5/6=-113/15+17/6=-226/30+85/30=-141/30=-4 21/30
h)8,23+3,99=12,22
i)-7,6+2,92=-4,68
j)3,8*(-0,7)=-2,66
k)4,8:0,06=80
l)0,42:(-3)=-0,14