Witam. Bardzo proszę o wyliczenia, kogoś o dobrym serduchu :) a. -7[latex] frac{4}{9} [/latex]-2[latex] frac{1}{6} [/latex]= b.3[latex] frac{1}{4} [/latex]-8[latex] frac{5}{6} [/latex]= c.-2[latex] frac{3}{5} [/latex]+7[latex] frac{1}{3} [/latex]= d.

[latex]a) \ -7 frac{4}{9} -2 frac{1}{6}=- frac{67}{9} - frac{13}{6} =- frac{134}{18} - frac{39}{18} =- frac{173}{18}=-9 frac{11}{18} \ b) \ 3 frac{1}{4} -8 frac{5}{6} = frac{13}{4}- frac{53}{6} = frac{39}{12} - frac{106}{12} =- frac{67}{12}=-5 frac{7}{12} [/latex] [latex]c) \ -2 frac{2}{5} +7 frac{1}{3} =- frac{12}{5} + frac{22}{3} =- frac{36}{15} + frac{110}{15} = frac{74}{15} =4 frac{14}{15} \ d) \ -3,12-6,1=-9,22[/latex] Chyba, że w zadaniu "d" trzeba było zamienić na ułamki zwykłe, wtedy: [latex]-3 frac{12}{100} -6 frac{1}{10} =- frac{312}{100} - frac{61}{10} =- frac{312}{100} - frac{610}{100} =- frac{922}{100} =-9 frac{22}{100} =-9,22[/latex]

a) -7i4/9-2i1/6= -7i8/18-2i3/18= -9i11/18 b) 3i1/4-8i5/6=3i3/12-8i10/12= -5i7/12 c) -2i3/5+7i1/3=-2i6/15+7i5/15=-2i6/15+6i20/15=4i14/15 d) -3,12-6,1= -9,22