Temat:Dzielenie ułamków.
Oblicz.
Z1
a)
4/5:6/7=
5/8:3/10=
4/9:5/6=
b)
5/7:1 2/5=
2 2/5:4/9=
3/4:1 1/8=
4 2/3:7/8=
c)
1 1/2:1 1/5=
1 2/3:1 1/9=
2 3/4:2 1/5=
3 1/8:3 3/4=
Z2
Uzupełnij tabelkę w miejsca kropek wpisz odpowiednie ułamki.
Liczba: 3/5 [......] 18 [......] 5 1/4 [......] 2/7 [.....]
Odwrotność liczby:[....]2 1/3[....] 13 [........]3 1/3[.....]1/12]
proszę o szybka pomoc:)
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a) 4/5:6/7= 4/5x 7/6= 21/30
5/8:3/10=5/8 x 10/3 = 50/24 = 2 i 2/24
4/9:5/6= 4/9 x 6/5 = 24/45
b)
5/7:1 2/5=5/7 : 7/5 = 5/7 x 5/7 = 25/49
2 2/5:4/9=12/5 : 4/9 = 12/5 x 9/4 = 108/20 = 5 8/20
3/4:1 1/8=3/4 : 9/8 = 3/4 x 8/9 = 24/36
4 2/3:7/8= 14/3 : 7/8 = 98/24 = 4 2/24
c)
1 1/2:1 1/5= 3/2 : 6/5 = 18/10 = 1 8/10
1 2/3:1 1/9= 5/3 : 10/9 = 5/3 x 9/10 = 45/30 = 1 15/30 = 1 1/2
2 3/4:2 1/5=11/4 : 11/5 - 11/4 x 5/11 = 55/44
3 1/8:3 3/4= 25/8 : 15/4 = 375/24
odwrotności liczb:
3/5 [ 5/3 ] 18 [ 1/18] 5 1/4 [4/21] 2/7 [ 7/2]
[3/7]2 1/3 [1/13]13 [3/10] 3 1/3 [12] 1/12
a)4/5x7/6=28/31
5/8x10/3=50/24=2 2/24=2 1/12
4/9x6/5=24/45
b)5/7:7/5=5/7x5/7=25/49
2 2/5:4/9=12/5x9/4=108/20=5 8/20=5 2/5
3/4:1 1/8=3/4x9/8=27/32
4 2/3:7/8=14/3x7/8=98/24
c)1 1/2:1 1/5=3/2x6/5=18/10=1 8/10=1 4/5
1 2/3:1 1/9=5/3x10/9=50/27=1 23/27
2 3/4:2 1/5=11/4x11/5=121/20=6 1/20
3 1/8:3 3/4=25/8x15/4=375/32=11 23/32
reszty nie wiem