1) Iloczyn liczb: 2 1/5, 0,3 i -5 pomniejsz 0 6. 2) Iloraz liczby 2 2/3 przez liczbę -4,8 zwiększ 0 5/9. 3) Do iloczynu liczb 1,2 i -2 1/3 dodaj iloczyn liczb 6/7 i -1 1/6.
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1.
2 1/5 * 0,3 * (-5) - 6 = 11/5 * 3/10 * (-5)/1 - 6 = 33/50 * (-5)/1 - 6 = - 165/50 - 6 = - 3,3 - 6 = - 9,3
2. 2 2/3 : - 4,8 + 5/9 = 8/3 : (-48/10) + 5/9 = 8/3 * (-10/48) + 5/9 = - 80/144 + 5/9 = - 5/9 + 5/9 = 0
3. 1,2 * (-2 1/3) + 6/7 * (-1 1/6) = 12/10 * (-7/3) + 6/7 * (- 7/6) = - 28/10 - 1 = - 2,8 - 1 = - 3,8