Resolva as expressões:
a)7/10+5/6
b)8/9-1/6
c)10/9×21/4
d)18/25÷21/10
e)(3/8+5/6) ÷(3/4-3/10)
obs:com conta PF *
Soluções para a tarefa
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a)7/10+5/6
(42+50)/60
92/60
23/15
b)8/9-1/6
(48-9)/54
39/54
13/18
c)10/9×21/4
210/36
35/6
d)18/25÷21/10
18/25/21/10
(18×10)/(25×21)
180/525
12/35
e)(3/8+5/6) ÷(3/4-3/10)
[(18+40)/48]÷[(30-12)/40]
58/48÷18/40
29/24÷9/20
29/24/9/20
580/216
145/54
(42+50)/60
92/60
23/15
b)8/9-1/6
(48-9)/54
39/54
13/18
c)10/9×21/4
210/36
35/6
d)18/25÷21/10
18/25/21/10
(18×10)/(25×21)
180/525
12/35
e)(3/8+5/6) ÷(3/4-3/10)
[(18+40)/48]÷[(30-12)/40]
58/48÷18/40
29/24÷9/20
29/24/9/20
580/216
145/54
kimpriscilajimin:
obrigada
disponha
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