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Pisicamiaum
a fost răspuns

amplificati cu 3:
5/19 ,2, 7/11,6/5
amplificati cu 9 :
8,3/2,17/21,6/29
Amplificati urmatoarele fracti ordinare si aduceti la fractii zecimale:
1080/945,1064/1288,108/36,78/32,4x+14xpatrat/14x+49,25x-46y/35x-56y
EFectuati:
a)4/5+3/7+2
b)7/2+9/5=6
Dau COROANA!!!!URGENT!!!!

Răspuns :

CosmoteRo
5/19=15/57
2,7/11=8,1/33
6/5=18/15

8,3/2=74,7/18
17/21=153/189
6/29=54/261

4/5+3/7+2=28/35+15/35+70/35=113/35
7/2+9/5=6
35/10+18/10=60/10
53/35=60/35

1080/945=1,142
1064/1288=0,82
108/36=3
78/32=2,43
Fata1305
Le amplific cu 3:
5/19=15/57
2,7/11=8,1/33
6/5=18/15

Le amplific cu 9:
8,3/2=74,7/18
17/21=153/189
6/29=54/261

Le aduc la fractii zecimale:
1080/945=1,14
1064/1288=0,82
108/36=3
78/32=2,43

Mai departe nu stiu dar sper ca te-am ajutat pana aici.