Răspuns :
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2,5 = 25/10 = 5/2
7 intregi si 1/3 = ( 7 x 3 + 1) /3 = 22/3
0,(3) = 3/9 = 1/3 → am simplificat prin 3 ;
x : 5/2 = 22/3 : 1/3
x · 2/5 = 22/3 · 3/1
2 x / 5 = 22 ⇒ 2x = 5 × 22 ⇒ x = (5 × 22) / 2 = 5 × 11 = 55
→ am simplificat pe 22 cu 2 =11/1
Verific: 2 x 55/5 = 2 x 11 = 22
Raspuns: x = 55
7 intregi si 1/3 = ( 7 x 3 + 1) /3 = 22/3
0,(3) = 3/9 = 1/3 → am simplificat prin 3 ;
x : 5/2 = 22/3 : 1/3
x · 2/5 = 22/3 · 3/1
2 x / 5 = 22 ⇒ 2x = 5 × 22 ⇒ x = (5 × 22) / 2 = 5 × 11 = 55
→ am simplificat pe 22 cu 2 =11/1
Verific: 2 x 55/5 = 2 x 11 = 22
Raspuns: x = 55