PLIS 1.sprowadź do wspólnego mianownika ułamki i porównaj je.
1/2 i 2/3 9/11 i 4/7 3/4 i 5/12 11/12 i 23/24
2.Oblicz
5 5/8 +4 2/8= 5 1/4 - 2 3/4 = (15 3/4 +5 7/4) - 7 3/4 =
17 7/8 - (2 3/8 + 7 7/8)=
3.sprowadź do wspólnego mianownika i oblicz
2/3 + 1/5= 3/5 + 1/2 = 4/9+ 5/12= 2/3 - 1/6 = 3/5 - 1/2 =
6/7 - 1/2= 4 3/4 - 1/2 = 4 1/2 - 2 5/6 = 3 5/8 + 2 2/3=
(6 1/3 - 4 1/2) + ( 4 1/3 - 2 5/6) =
4.oblicz pamiętając o skracaniu
15 * 3/5= 18 * 2 3/9 = 1/4 * 2/5= 6/7 * 3 1/3=
3 2/3 * 4 5/6= 12 : 5/7 = 35: 2 4/5= 1/2 : 2/3= 4 3/7 : 3/7=
1 1/3 : 2 3/4= 3 3/4 : ( 1 1/2 + 3 2/5 )= 4 2/9 - 1 5/6 * 4/11=
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1.sprowadź do wspólnego mianownika ułamki i porównaj je.
1/2 i 2/3 = 3/6 i 4/6
9/11 i 4/7 = 63/77 i 44/77
3/4 i 5/12 = 9/12 i 5/12
11/12 i 23/24 = 22/24 i 23/24
2. Do końca nie umiem
3..sprowadź do wspólnego mianownika i oblicz
2/3 + 1/5= 10/15 + 3/15 = 13/15
3/5 + 1/2 = 6/10 + 5/10 = 1 1/10
4/9+ 5/12= 16/36 + 15/36 = 1 1/36
2/3 - 1/6 = 4/6 - 1/6 = 3/6
3/5 - 1/2 = 6/10 - 5/10 = 1/10
6/7 - 1/2= 12/14 - 7/14 = 5/14
4 3/4 - 1/2 = 4 3/4 - 2/4 = 41/4
4 1/2 - 2 5/6 =4 3/6 - 2 5/6 = 1 2/6
3 5/8 + 2 2/3= 15/24 + 2 16/24 = 2 31/24 = 3 7/24
(6 1/3 - 4 1/2) + ( 4 1/3 - 2 5/6) = 6 2/3 + (13 2/3 - 2 5/6)= 6 2/3 + ( 13 4/6 - 2 5/6) = 6 2/3 + 10 5/6 = 6 4/6 + 10 5\6 = 17 3/6
Mam Nadzieję Że Pomogłem
Zad.1.
1) 1/2 i 2/3=3/6>2/6
2) 9/11 i 4/7=63/77>44/77
3) 3/4 i 5/12=9/12>5/12
4)11/12 i 23/24= 22/24<23/24
Zad.2.
1) 5 5/8 + 4 2/8=9 7/8
2) 5 1/4-2 3/4=4 5/4 -2 3/4=2 2/4=2 1/2
3) (15 3/4 +5 7/4)-7 3/4=20 10/4 - 7 3/4= 13 7/4= 14 3/4
4) 17 7/8-(2 3/8 + 7 7/8)=17 7/8- 9 10/8=17 7/8 - 10 2/8=7 5/8
Zad.3.
1) 2/3 + 1/5= 10/15 + 3/15=13/15
2)3/5 + 1/2=6/10+5/10=11/10=1 1/10
3) 4/9+5/12=16/36+15/36=31/36
4)2/3-1/6=4/6-1/6=3/6=1/2
5)3/5-1/2=6/10-5/10=1/10
6)6/7-1/2=12/14-7/14=5/14
7)4 3/4-1/2=4 3/4-2/4=4 1/4
8)3 5/8+2 2/3=3 15/24+2 16/24=5 31/24=6 7/24
9)(6 1/3-4 1/2)+(4 1/3-2 5/6)=(6 2/6-4 3/6)+(4 2/6-2 5/6)=(5 8/6-4 3/6)+(3 8/6-2 5/6)=1 5/6+2=3 5/6
Zad.4.
1)15*3/5=9/1=9
2)18*2 3/9=18*21/9=42/9=4 6/9=4 2/3
3)1/4*2/5=2/20=1/10
4)6/7*3 1/3=6/7*10/3=20/7=2 6/7
5)3 2/3*4 5/6=11/3*29/6=319/18=17 13/18
6)12:5/7=12*7/5=84/5=16 4/5
7)35:2 4/5=35*14/5=98/1=98
8)1/2:2/3=1/2*3/2=3/4
9)4 3/7:3/7=31/7*7/3=31/3=10 1/3
10)1 1/3:2 3/4=4/3:11/4=4/3*4/11=16/33
11)3 3/4:(1 1/2+3 2/5)=15/4:(1 5/10+3 4/10)=15/4:4 8/10=15/4:48/10=15/4*10/48=75/96
12)4 2/9-1 5/6*4/11=4 2/9-11/6*4/11=4 2/9-2/3=4 2/9-6/9=3 11/9-6/9=3 5/9