Question

calculați 2supra 3 +1supra4 -5supra12
1supra4 + 4supra5. :2supra5 -5supra6​

Answer 1

Răspuns:

1)1

2

2)7

15

Explicație pas cu pas:

2+1- 5

3. 4. 12

Aducem mai intai la acelasi numitori

8+3-5=6. =2=1

12. 12. 4. 2

1+4:2-5

4. 5 5 6

Aducem la acelasi numitor (eu cred ca 60)

20+48:24-50=20+2-50=22-50=-28

60. 60. 60. 60

=-14 =-7.

30. 15

Answer 2

2/3+1/4-5/12

(8+3-5)/12

6/12

1/2

1/4+4/5:2/5-5/6

1/4+4/5×5/2-5/6

1/4+2-5/6

17/12