1) 10 4/5 / 5 = 54/5 / 5 = 54/25 ; 2) 6,125 * 1/5 = 6 1/8 * 1/5 = 49/8 * 1/5 = 49/40 ; 3) 3/8 * 0,08 = 3/8 * 8/100 = 3/8 * 2/25 = 6/200 = 3/100 ;
4) 54/25 - 49/40 + 3/100 = 232/200 - 392/200 + 6/200 = - 154/200 = - 77/100 ; 5) 4,4 * (- 77/100) = 44/10 * (- 77/100) = - 3388/1000 = - 3,388