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11. Calculaţi: 1 a) 2- d) 3- 3 -15 12 8 16 4 6 3 --1- 25 15 5 9 22-12-1 14 1. 10 4 15 b))1- e) 4. 5 21 7 12 3 2. 4 c) 3. 55 9 18 7 f) 3. 18 15 -2- 24 1 9 Matematică 141​

11 Calculaţi 1 A 2 D 3 3 15 12 8 16 4 6 3 1 25 15 5 9 22121 14 1 10 4 15 B1 E 4 5 21 7 12 3 2 4 C 3 55 9 18 7 F 3 18 15 2 24 1 9 Matematică 141 class=

Răspuns :

a)25/12-3/8-1 5/16
25/12-3/8-1 5/16
25/12-3/8 - 21/16
19/48
b)19/10-1 1/4 -4/15
19/10–5/4-4/15=23/60
c)28/9-5/18- 1intregi)5/24
28/9-5/18-29/24=13/8
d)89/21-7/12- doi întregi 3/4
89/21-7/12-11/4=19/21
e)59/18-2 întregi 7/15-1/9
59/18-37/15-1/9=7/10