Odpowiedzi

2009-10-13T15:01:20+02:00
18*12= 9 * 2 * 6 * 2 = 3 * 3 * 2 * 3 * 2 * 2 = 3 * 3 * 3 * 2 * 2 * 2

21*50= 3 * 7 * 5 * 5 * 2

35*48= 7 * 5 * 6 * 8 = 7 * 5 * 3 * 2 * 2 * 2 * 2

²⁵/₂ = ⁵*⁵/₂

²¹/₃ = ³*⁷/₃ = 7

³⁵/₂ * ²¹/₂ = ⁷*⁵/₂ * ⁷*³/₂ = ⁷*⁷*²*³/₂
2009-10-13T15:03:59+02:00
18*12= 9 * 2 * 6 * 2 = 3 * 3 * 2 * 3 * 2 * 2 = 3 * 3 * 3 * 2 * 2 * 2

21*50= 3 * 7 * 5 * 5 * 2

35*48= 7 * 5 * 6 * 8 = 7 * 5 * 3 * 2 * 2 * 2 * 2

²¹/₃ = ³*⁷/₃ = 7

³⁵/₂ * ²¹/₂ = ⁷*⁵/₂ * ⁷*³/₂ = ⁷*⁷*²*³/₂

²⁵/₂ = ⁵*⁵/₂

  • Użytkownik Zadane
2009-10-13T15:06:10+02:00

18*12=(2*9)*(4*3)=(2*3*3)*(2*2*3)=(2*2*2*3*3*3)

21*50=(3*7)*(25*2)=(3*7)*(5*5*2)=(2*3*5*5*7)

35*48=(5*7)*(6*8)=(5*7)*(2*3*2*4)=(5*7)*(2*3*2*2*2)=(2*2*2*2*3*5*7)

25/2=((5*5)/2)=(5/2)*(5/1)=(5/2)*5

21/3=((3*7)/3)=(3/3)*(7/1)=1*7=7

(35/2)*(21/2)=((5*7)/2)*((3*7)/2)=(5/2)*(7/1)*(3/2)*(7/1)=(5/2)*(3/2)*7*7