Proszę potrzebuje na jutro


Odpowiedź:
3.
a)
5 4/9 + 7/9 = 5 11/9 = 6 2/9
b)
2 3/7 + 5/7 = 2 8/7 = 3 1/7
c)
5 5/8 + 3/8 = 5 8/8 = 6
d)
4 3/5 + 3 4/5 = 7 7/5 = 8 2/5
4.
a)
14/19 - 3/19 = 11/9
8/13 - 3/13 = 5/13
b)
4 3/10 - 2/10 = 4 1/10
5 2/7 - 1/7 = 5 1/7
c)
6 9/17 - 1 3/17 = 5 6/17
4 8/9 - 3 4/9 = 1 4/9
5.
a)
-1/4 = -1 * 1/4 = -1/4
b)
7/9 - 2/9 = 5/9
c)
3 - 2/5 = 2 3/5
d)
2 2/7 - 1 = 1 2/7
e)
5/11 - 5/11 = 0
f)
11/32 - 0 = 11/32
9.
a)
3 1/7 - 2/7 = 2 8/7 - 2/7 = 2 6/7
b)
2 2/5 - 3/5 = 1 7/5 - 3/5 = 1 4/5
c)
6 3/8 - 2 7/8 = 5 11/8 - 2 7/8 = 3 4/8 = 3 1/2
d)
25 3/10 - 14 9/10 = 24 13/10 - 14 9/10 = 10 4/10 = 10 2/5
10.
a)
4 3/7 + 3 4/7 = 7 7/7 = 8
b)
8/21 + 11/21 = 19/21
c)
7 7/10 - 6 6/10 = 1 1/10
d)
7 2/15 - 4 4/15 = 6 17/15 - 4 4/15 = 2 13/25
e)
8 3/10 - 5 6/10 = 7 13/10 - 5 6/10 = 2 7/10
f)
7 7/15 - 2 7/15 = 5
zadania zapisane wyzej sa nieczytelne
Szczegółowe wyjaśnienie:
Odpowiedź:
Zad 3:
b] 2 8/7=3 1/7
c]6
d]7 7/5=7 2/5
zad 4:
a]11/19 5/13
b]4 1/10 5 1/7
c]5 6/17 1 4/9
zad 5:
a] 2/4
b] 2/9
c] 3
d] 1 1/7
e] 5/11
f] 0
zad 6:
a] 1/6 4 1/6
b] 1/9 3 1/9
c] 7/12 6 7/12
zad 7:
a] 1/8
b] 2/7
c] 1 1/7
d] 1 2/5
e] nie widze
f] nie widze
zad 9:
b] 1 4/5
d] 10 4/10
zad 10:
a] =
b] <
c] >
d] <
e] >
f] =
Szczegółowe wyjaśnienie: