![Calculați a) (-2/9+3 1/18)×18 b) (-3/25 + 1 1/3) ×7, 5 f) (2 1/2 - 3 2/3) ×2 1/7 - 1 1/2 g) ( 2 2/15×3 - Brainly.ro Calculați a) (-2/9+3 1/18)×18 b) (-3/25 + 1 1/3) ×7, 5 f) (2 1/2 - 3 2/3) ×2 1/7 - 1 1/2 g) ( 2 2/15×3 - Brainly.ro](https://ro-static.z-dn.net/files/d42/5a8481d35723a2960c769eaf546848c3.jpg)
Calculați a) (-2/9+3 1/18)×18 b) (-3/25 + 1 1/3) ×7, 5 f) (2 1/2 - 3 2/3) ×2 1/7 - 1 1/2 g) ( 2 2/15×3 - Brainly.ro
![Fie a=1+3+3^2+...+3^10+3^11.a) Aratati ca a este numar par.b) Aratati ca numarul a este divizibil cu - Brainly.ro Fie a=1+3+3^2+...+3^10+3^11.a) Aratati ca a este numar par.b) Aratati ca numarul a este divizibil cu - Brainly.ro](https://ro-static.z-dn.net/files/d15/35a1e5c03cd22551ceb4b0586cafc675.jpg)
Fie a=1+3+3^2+...+3^10+3^11.a) Aratati ca a este numar par.b) Aratati ca numarul a este divizibil cu - Brainly.ro
![Efectuați a 1 supra 2 plus 2 supra 3 B 4 supra 8 plus 2 supra 10 c 3 supra 4 plus 1 supra 6 plus 5 supra 12 - Brainly.ro Efectuați a 1 supra 2 plus 2 supra 3 B 4 supra 8 plus 2 supra 10 c 3 supra 4 plus 1 supra 6 plus 5 supra 12 - Brainly.ro](https://ro-static.z-dn.net/files/dcf/2eac45b211bd3f7f59c5d52dfdc2f636.jpg)
Efectuați a 1 supra 2 plus 2 supra 3 B 4 supra 8 plus 2 supra 10 c 3 supra 4 plus 1 supra 6 plus 5 supra 12 - Brainly.ro
![Calculeaza:A=(2/3-1/2)+3/4;B=5/6+(1-3/4);C=1/3-(5/6-1/2);D:1-(2/5+1/10)+3/10 Va rog frumos cat de - Brainly.ro Calculeaza:A=(2/3-1/2)+3/4;B=5/6+(1-3/4);C=1/3-(5/6-1/2);D:1-(2/5+1/10)+3/10 Va rog frumos cat de - Brainly.ro](https://ro-static.z-dn.net/files/dbd/119b01eca9755d6509a6b44a78cc39fb.jpg)
Calculeaza:A=(2/3-1/2)+3/4;B=5/6+(1-3/4);C=1/3-(5/6-1/2);D:1-(2/5+1/10)+3/10 Va rog frumos cat de - Brainly.ro
![Calculati a)4 1/2:2/3 b)7/12:3 1/16 c)5:1 1/4 d)2 2/3:2 1/3 e)4 1/2:3 1/2 f)5 1/6:5 8/9 g)16:9 3/5 h)3 3/4:1 - Brainly.ro Calculati a)4 1/2:2/3 b)7/12:3 1/16 c)5:1 1/4 d)2 2/3:2 1/3 e)4 1/2:3 1/2 f)5 1/6:5 8/9 g)16:9 3/5 h)3 3/4:1 - Brainly.ro](https://ro-static.z-dn.net/files/d52/e2b5163508bd12f5559e37f6a53f36bf.jpg)
Calculati a)4 1/2:2/3 b)7/12:3 1/16 c)5:1 1/4 d)2 2/3:2 1/3 e)4 1/2:3 1/2 f)5 1/6:5 8/9 g)16:9 3/5 h)3 3/4:1 - Brainly.ro
![Calculati: 1) 1 supra 2 + 1/3 + 1/4 + 1/5 2) 1/40 + 3/8 + 7/4 + 1/2 3) 1/9 + 2/18 + 3/27 + 4/36 Dau - Brainly.ro Calculati: 1) 1 supra 2 + 1/3 + 1/4 + 1/5 2) 1/40 + 3/8 + 7/4 + 1/2 3) 1/9 + 2/18 + 3/27 + 4/36 Dau - Brainly.ro](https://ro-static.z-dn.net/files/da7/b6ba7ae4253c4726c4b9d5931dc72bcf.jpg)