Question

am nevoie urgent, vă rog frumos ajutați-mă❤ ​

Answer 1

Explicație pas cu pas:

1. ¹¹(7/8) = 77/88

2. 12/ 16 = 6/8 = 3/4

3. 7 × 5/4 = 35 / 4

4. 3/11 + 4/11 + 5/11 = 12/11

5. ⁴(4/3) - 7/12 = 16/12 - 7/12 = 9/12 = 3/4

6. 4/5 × 5/2 = 2/5 × 5/1 = 10/5 = 1/2

7. 7/6 ÷ 21/22 = 11/9

8. 4/7 × 21/36= 2 × 3/13 = 6/13

9. 24/100 × 1500/1 = 24 × 15/1 = 360

10. 75/4 = 18 intregi si 3/4

11. 3/4 : ( 3/4 - 1/2) - 4/9 = 23/9

12. a) 342/27

b) 25/9

13. 200 + 10% = 220 lei