Do liczby-6 2/3 dodajsumę liczby -10 i -4 1/8

(-6 2/3) + [(-10) + (-4 1/8)] = (-6 2/3) + (-14 1/8) = (-6 16/24) + (-14 3/ 24) = (-20 19/24)

Do liczby-6 2/3 dodajsumę liczby -10 i -4 1/8 -6 2/3 + ( -10 + (- 4 1/8) = -6 2/3 + (-10 - 4 1/8) -6 2/3 - 14 1/8= -6 16/24 - 14 3/24 = -20 i 19/24