(1 3 supra 10-2 3 supra 5 )÷(2 1supra 2 ÷3 1supra 3+1 1 supra 4)
Răspunsuri la întrebare
13 23 21 31 11
( ---- - ---- ) : ( --- : --- + ------ ) =
10 5 2 3 4
13/10 - ² ⁾ 23/5 = 13/10 - 46/10 = - 33/10
21/2 : 31/3 = 21/2 · 3/31 = (21·3)/(2·31) = 63/62
- 33/10 : ( ²⁾ 63/62 + ³¹⁾ 11/4 ) = - 33/10 : (126/124 + 341/124) =
62 | 2 4|2
31 | 31 2|2
1 1
62=2 · 31 4=2²
[62 ; 4] = 2² · 31 = 124
124:62=2
124:4=31
= - 33/10 : (126+341)/124 = - 33/10 : 467/124 =
= - 33/10 · 124/467 = - (33 · 124) / (10·467) =
4092 ⁽² 2046
= - ---------- = - ---------- = - 2046 : 2335 = - 0,87
4670 2335