Odpowiedź :
a] ⅘ liczby 3½=⅘×⁷/₂=²⁸/₁₀=2,8,,,,,,,b]¾×½×5⅘=⅜ײ⁹/₅=⁸⁷/₄₀=2⁷/₄₀
a)3 i1/2 = 7/2
7/2 * 4/5 = 14/5 = 2 i4/5
b) 5 i4/5 = 29/5
29/5 * 1/2 = 29/10
29/10 * 3/4 = 87/40 = 2 i7/40
7/2 * 4/5 = 14/5 = 2 i4/5
b) 5 i4/5 = 29/5
29/5 * 1/2 = 29/10
29/10 * 3/4 = 87/40 = 2 i7/40