Odpowiedź:
a) 25/30+18/30=43/30=1 i 13/30
b) 23 i 6/9 + 5 i 7/9=27 i 13/9 = 28 i 4/9
c)2 i 5/12+3/8= 2i 10/24+ 9/24= 2i 19/24
d)5i 7/18+2 i 5/6= 5 i 7/18 + 2i 15/18= 7 i 22/18 =8 i 4/18
e)4/7-1/3=12/21-7/21=5/21
f)6 i 5/12- 4 i 5/6=6 i 5/12- 4 i 10/12= 1 i 5/12
g ) 4i 2/7-2= 2 i 2/7
h) 3 i 1/3- 2/5= 3 i 5/15-6/15 =2 1/14
Mam nadzieje ze pomogłam
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Odpowiedź:
a) 25/30+18/30=43/30=1 i 13/30
b) 23 i 6/9 + 5 i 7/9=27 i 13/9 = 28 i 4/9
c)2 i 5/12+3/8= 2i 10/24+ 9/24= 2i 19/24
d)5i 7/18+2 i 5/6= 5 i 7/18 + 2i 15/18= 7 i 22/18 =8 i 4/18
e)4/7-1/3=12/21-7/21=5/21
f)6 i 5/12- 4 i 5/6=6 i 5/12- 4 i 10/12= 1 i 5/12
g ) 4i 2/7-2= 2 i 2/7
h) 3 i 1/3- 2/5= 3 i 5/15-6/15 =2 1/14
Mam nadzieje ze pomogłam