alguém pode me ajudar estou com dificuldade?
Soluções para a tarefa
a) 11/10 l) 4317/250 w) 1047/50000
b) 25/28 m) 4293/200 x) 1
c) 126/65 n) 36601/1000 y) 85/2
d) 517/48 o) 5441/500 z) 3
e) -10/7 p) 81/100 aa) 2
f) 232/38 q) 533/40 ab) 20
g) 58/7 r) 9/5 ac) 40
h) -91/6 s) 102/25 ad) 69/20
i) 31/42 t) 9/40 ae) 5
j) 111/10 u) 39/80 af) 110
k) 258/25 v) 3/1250 ag) 11/100
Cálculo:
a)
(1/2) + (3/5)
(5/10) + (6/10)
(5+6)/10
11/10
b)
(8/7) + (1/2) - (3/4)
(32/28) + (14/28) - (21/28)
(32+14-21)/28
25/28
c)
( (9/10) + (5/10) ) - (-7/13)
(9+5)/10 + (7/13)
(14/10) + (7/13)
(182/130) + (70/130)
(182+70)/130
(252/130) ÷2
126/65
d)
( (5/6) + 7 ) ÷ (8/11)
(47/6) ÷ (8/11)
(47/6) . (11/8)
517/48
e)
( (2/3) . 5 ) . (-3/7)
(10/3) . (-3/7)
(-30/21) ÷3
-10/7
f)
( 9 - (7/3) ) + ( (4/5) ÷ (13/5) )
(20/3) + ( (4/5) . (5/13) )
(20/3) + (20/65) ÷5
(20/3) + (4/13)
(260/39) + (12/39)
(260+12)/39
272/39
g)
( (X/2) + (6/7) = 5 ) .2
( X + (12/7) = 10 ) .7
7X + 12 = 70
7X = 70-12
7X = 58
X = 58/7
h)
(7/3) + (8/5) - ( (X/5) ÷ (1/2) ) = 10
(35/15) + (24/15) - ( (X/5) . (2/1) ) = 10
(35+24)/15 - (2X/5) = 10
( (59/15) - (2X/5) = 10 ) .15
59 - 6X = 150
59 - 150 = 6X
-91 = 6X
6X = -91
X= -91/6
i)
( (3/2) + (5/7) ) ÷ 3
( (21/14) + (10/14) ) ÷ 3
( (21+10)/14 ) ÷ 3
(31/14) ÷ 3
(31/14) . (1/3)
31/42
j)
6,52 + 4,58
(652/100) + (452/100)
(652+458)/100
(1110/100) ÷10
÷10111/10
k)
7,318 + 3,002
(7317/1000) + (3002/1000)
(7318+3002)/1000
(10320/1000) ÷40
÷40258/25
l)
10,94 - 6,328
(1094/100) - (6328/1000)
(10940/1000) - (6328/1000)
(10940+6328)/1000
(17268/1000) ÷4
÷44317/250
m)
12,345 - 9,12
(12345/1000) - (912/100)
(12345/1000) - (9120/1000)
(12345-9120)/1000
(21465/1000) ÷5
÷54293/200
n)
13,8 + 22,234 +0,567
(138/10) + (22234/1000) + (567/1000)
(13800/1000) + (22234/1000) + (567/1000)
(13800+22234+567)/1000
36601/1000
o)
7 + 3,45 + 0,432
7 + (345/100) + (432/1000)
( 7 + (345/100) ) + (432/1000)
(1045/100) + (432/1000)
(10450/1000) + (432/1000)
(10450+432)/1000
(10882/1000) ÷2
÷25441/500
p)
0,856 - 0,046
(856/1000) - (46/1000)
(856-46)/1000
(810/1000) ÷10
81/100
q)
0,09 + 4,97 + 5,1 + 0,5
(9/100) + (497/100) + (51/10) + (5/10)
(9/100) + (497/100) + (510/100) + (50/100)
(9+497+510+50)/100
(1066/100) ÷2
533/50
r)
4,5 . 0,4
(45/10) . (4/10)
(180/100) ÷20
9/5
s)
3,4 . 1,2
(34/10) . (12/10)
(408/100) ÷4
102/25
t)
0,45 . 0,5
(45/100) . (5/10)
(225/1000) ÷25
9/40
u)
3,25 . 0,15
(325/100) . (15/100)
(4875/10000) ÷125
39/80
v)
0,48 . 0,005
(48/100) . (5/1000)
(240/100000) ÷80
3/1250
w)
1,047 . 0,02
(1047/1000) . (2/100)
(2094/100000) ÷2
1047/50000
x)
25 . 0,04
25 . (4/100)
(100/100)
1
y)
0,425 . 100
(425/1000) . 100
(42500/1000) ÷500
85/2
z)
1,5 : 0,5
(15/10) : (5/10)
(15/10) . (10/5)
(150/50)
3
aa)
0,08 : 0,04
(8/100) : (4/100)
(8/100) . (100/4)
(800/400)
2
ab)
3,4 : 0,17
(34/10) : (17/100)
(34/10) . (100/17)
(3400/170)
20
ac)
10 : 0,25
10 : (25/100)
10 . (100/25)
(1000/25)
40
ad)
34,5 : 10
(345/10) : 10
(345/10) . (1/10)
(345/100) ÷5
69/20
ae)
21,8 : 4,36
(218/10) : (436/100)
(218/10) . (100/436)
(21800/4360)
5
af)
77 : 0,7
77 : (7/10)
77 . (10/7)
(770/7)
110
ag)
0,88 : 8
(88/100) : 8
(88/100) . (1/8)
(88/800) ÷8
11/100