Question

Calcule: 7/9 : 2/4= b) 3/8 x 5/11= c) 3/12 + 4/9 +1/3 = d) 3/8 - 2/7 =

Answer 1

Resposta:

a. D + E

7. 6. 5.

-2. 1. 3.

7. 3. 7.

b. 5A

15. 0.

-5. 10.

5. 5.

c. -3(D + 2E)

-39. -21. -24.

9. -6. -15.

-33. -12. -30.

d. 2AT + C

7. 2. 4.

3. 5. 7.

e. ½CT– ¼A

-0.25 1.5

2.25 0.

0.75 2.25