Wykonaj działania :
a)
1/4 + 2/3 + 1/6 = ?
b)
1cała i 5/7 + 2całe 3/4 = ?
c)
7/8 - 3/4 = ?
d)
2całe 1/3 - 1cała i 3/5
zad.2
a)
c - 5/6 = 7/9
d - 1cała i 1/4 = 2całe i 2/3
b)
1/2 - p = 3/7
1cała 1/5 - u = 5/6
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1/4+2/3+1/6=3/12+8/12+2/12=15/12=1 1/4
1 5/7+ 2 3/4=1 20/28+ 2 21/28=3 41/28=4 13/41
7/8-3/4=7/8-6/8=1/8
2 1/3 - 1 3/5=2 5/15 - 1 9/15=11/15
c-5/6=7/9
c=7/9+5/6
c=14/18+15/18=29/18=1 11/18
d-1 1/4=2 2/3
d= 1 1/4+2 2/3
d=1 3/12+2 8/12=3 11/12
1/2-p=3/7
p=1/2-3/7
p=7/14-6/14=1/14
1 1/5-u=5/6
u=1 1/5-5/6
u=1 6/30-25/30=11/30
Liczę na naj :)