Odpowiedź :
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
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
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
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
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