Exercitii ş 9. Calculaţi: 2 a) 2- 9 1 e) 3. 6 19 15 3 2-: 8 5 b) 2- f) 4- 8 2 15 cultate medie 47 20 3- 6 5 51 c) 3. 6 51. 16 5-2²; 7 10 g) 2--2- 6 1 d) 2- 6 40 27 5 5 h) 2- --1- 18 12

Răspuns:
a) 20/9 - 19/15 = (100 - 57)/45 = 43/45
b) 21/8 - 47/20 = (105 - 94)/40 = 11/40
c) 23/6 - 51/16 = (184 - 153)/48 = 31/48
d) 13/6 - 40/27 = (117 - 80)/54 = 37/54
e) 19/6 - 19/8 = (76 - 57)/24 = 19/24
f) 62/15 - 19/6 = (124 - 95)/30 = 29/30
g) 17/6 - 27/10 = (85 - 81)/30 = 4/30 = 2/15
h) 41/18 - 17/12 = (82 - 51)/36 = 31/36
Explicație pas cu pas:
asa faci la toate ,sper ca te am ajutat