BARDZO PROSZĘ O POMOC SAMA NIE DAM RADY BO WOGULE TEGO NIE KUMAM proszę o całe obliczenia

(9 i 1/8 + 5 i 2/5) - (1/20 + 1 i 1/10) = (9 i 5/40 + 5 i 16/40) - (1/20 + 1 i 2/20) = 14 i 21/40 - 1 i 3/20 = 14 i 21/40 - 1 i 6/40 = 8 i 15/40 = 8 i 3/8 1 i 1/5 * 2 i 5/8 : 2 i 1/3 = 6/5 * 21/8 : 7/3 = 6/5 * 21/8 * 3/7 = 18/40 * 3 = 54/40 = 1 i 14/40 = 1 i 7/20 2 i 5/8 : 7 * 1 i 1/6 = 21/8 * 1/7 * 7/6 = 3/8 * 7/6 = 7/16 4 i 1/2 : 1 i 1/8 - 3 i 5/8 = 9/2 * 8/9 - 3 i 5/8 = 4 - 3 i 5/8 = 3 i 8/8 - 3 i 5/8 = 3/8