Efetue as divisões _ foto abaixo
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a) 3/5.4/3= 12/15= 4/5
d) -5/6.(-4/1)= 20/6= 10/3
b)3/5.(-7/2)= -21/10
c)-4/9.(-2/5)= 8/45
e)(-4).(3/8)= -12/8= -6/4= -3/2
f)(-6).(+1/5)= -6/5
2- a)84/10.(-10/15)= -840/150= -84/15= -28/5
b)-6572/100.(-10/124)= 65720/12400= 3286/620= 1643/310
c) -988/1000.10/38= -9880/38000= -988/3800= -494/1900= -247/950
d) 3/10. (-10/2)= -30/20= -3/2= 1,5
d) -5/6.(-4/1)= 20/6= 10/3
b)3/5.(-7/2)= -21/10
c)-4/9.(-2/5)= 8/45
e)(-4).(3/8)= -12/8= -6/4= -3/2
f)(-6).(+1/5)= -6/5
2- a)84/10.(-10/15)= -840/150= -84/15= -28/5
b)-6572/100.(-10/124)= 65720/12400= 3286/620= 1643/310
c) -988/1000.10/38= -9880/38000= -988/3800= -494/1900= -247/950
d) 3/10. (-10/2)= -30/20= -3/2= 1,5
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