Rozwiąż równania :
a) X+9,6=17 i 1/4
b)1,5 + X=3 i 5/6
c)6,75 - X=2 i 11/12
d) X - 5 i 5/6 = 2,8
e) 3/7 * X=1,6
f) X * 3,5 = 4 i 2/3
g) x : 5,25=1 i 13/15
h) 6,4 : X = 16
Oblicz wartość wyrażenia :
a) 2,5 : 1 i 1/3 + 3 i 3/4 * 4,2=
b) 4,5 : (2 i 2/5 - 2,25) + 1 i 5/6=
c)2,6 + 3 i 2/5 : 1,7 + 6/7 * 2 i 1/3=
d) 2/3 - )4/5-0,8 * 3/8):3/4=
Oblicz :
a)
3/4 + 0,8=
1,2 + 2/3=
3,25 + 1 i 4/5=
4,8 + 0,75 + 7/8=
b)
24/25-0,35=
4,5 - 2 i 2/5=
6 i 19/20 - 4,75=
12,125-7 i 5/8=
c)
24/25- 0,35=
4,5-2 i 2/5=
6 i 19/20 - 4,75=
12,125-7 5/8
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a) X+9,6=17 i 1/4
X= 17, 25- 9,6
X=7,65
b)1,5 + X=3 i 5/6
X= 3 i 5/6 - 1 i 1/2
X= 3 i 5/6 - 1 i 3/6
X= 2 i 2/6
X= 2 i 1/3
c)6,75 - X=2 i 11/12
-X= 2 i 11/12 - 6 i 3/4
-X=2 i 11/12- 6 i 9/12
-X= - 5 i 21/12 + 2 i 11/12
-X= - 3 i 10/12 / : (-1)
x= 3 i 5/6
d) X - 5 i 5/6 = 2,8
X= 2 i 4/5 + 5 i 5/6
X= 2 i 24/30+ 5 i 25/30
X= 7 i 49/30
X= 8 i 19/30
e) 3/7 * X=1,6
X= 1 i 3/5:3/7
X=8/5*7/3
X=56/15
X= 3 i 11/15
f) X * 3,5 = 4 i 2/3
X= 14/3 :7/2
X=14/3* 2/7
X=4/3
x= 1 i 1/3
g) x : 5,25=1 i 13/15
X=1 i 13/15 *5 i 1/4
X= 28/13 * 21/4
x=127/15
x=9 i 12/15
h) 6,4 : X = 16
x=6,4 :16
x=0,4
Oblicz wartość wyrażenia :
a) 2,5 : 1 i 1/3 + 3 i 3/4 * 4,2=
2 i 1/2 : 1 i 1/3 + 3 i 3/4 * 4 i 1/5=
5/2*3/4+ 15/4*21/5=
15/8+ 63/4
1 i 7/8+ 15 i 6/8=
16 i 13/8=
17 5/8
b) 4,5 : (2 i 2/5 - 2,25) + 1 i 5/6=
4 i 1/2 :( 2 i 2/5- 2 i 1/4) + 1 i 5/6=
9/2: ( 2 i 8/20 - 2 i 5/20) + 1 i 5/6=
9/2 : 3/20 + 1 i 5/6=
9/2*20/3+ 1 i 5/6=
30 + 1 i 5/6=
31 i 5/6
c)2,6 + 3 i 2/5 : 1,7 + 6/7 * 2 i 1/3=
2 i 3/5+17/5: 1 i 7/10 + 6/7 * 7/3=
2 i 3/5 + 17/5 * 10/17 + 2=
2 i 3/5 +2+2=
6 i 3/5
d) 2/3 - )4/5-0,8 * 3/8):3/4=
2/3 -( 4/5 - 8/10 * 3/8) *4/3=
2/3-( 4/5 - 3/10)*4/3=
2/3 -( 8/10- 3/10)*4/3=
2/3- 5/10 *4/3=
2/3 -10/15=
2/3 - 2/3=0
Oblicz :
a)
3/4 + 0,8= 3/4+ 4/5= 15/20+16/20=31/20= 1 i 11/20
1,2+ 2/3=1 i 1/5+ 2/3= 1 i 3/15+ 10/15= 1 i 13/15
3,25 + 1 i 4/5=3 i 1/4 + 1 i 4/5 = 3 i 5/20+ 1 i 16/20=4 i 21/20= 5 i 1/20
4,8 + 0,75 + 7/8=4 i 4/5+3/4+ 7/8=4 i 32/40+ 30/40+35/40=4 i 97/40=6 i 17/40
b)
24/25-0,35= 24/25 - 35/100= 96/100-35/100=61/100
4,5 - 2 i 2/5=4 i 5/10 - 2 i 4/10=2 i 1/10
6 i 19/20 - 4,75=6 i 19/20 - 4 i 75/100= 6 i 19/20- 4 i 15/20=2 i 4 /20 = 2i 1/5
12,125-7 i 5/8=12 i 125/1000- 7 i 625/1000=11 i 1125/1000- 7 i 625/1000=4 i 500/1000=4 i 1/2
c)
24/25- 0,35=96/100 - 35/100= 61/100
4,5-2 i 2/5=4 i 5/10 - 2 i 4/10=2 i 1/10
6 i 19/20 - 4,75=6 i 19/20 - 4 i 75/100= 6 i 19/20- 4 i 15/20=2 i 4 /20 = 2i 1/5
12,125-7 5/8=12 i 125/1000- 7 i 625/1000=11 i 1125/1000- 7 i 625/1000=4 i 500/1000=4 i 1/2