Ответ:

Пошаговое объяснение:

[tex]a)4\frac{5}{6} -(5\frac{3}{8} -a)=4\frac{20}{24} -5\frac{9}{24}+a=-\frac{13}{24} +a\\ \\ esli\\ a=-2\frac{1}{4} ; \\ -\frac{13}{24} +a = -\frac{13}{24} +(-2\frac{1}{4} )=-(\frac{13}{24}+2\frac{6}{24})=-2\frac{19}{24} \\\\ otvet: -2\frac{19}{24} \\ \\ b)\\1)-2\frac{1}{12} +1\frac{5}{8} =-2\frac{2}{24} +1\frac{15}{24} =-\frac{11}{24} \\ \\ 2)-0,95-3,3=-4,25\\ \\ 3)-\frac{11}{24} -(-4,25)=-\frac{11}{24} +4\frac{1}{4} =-\frac{11}{24} +4\frac{6}{24} =3\frac{19}{24}\\ \\[/tex]

[tex]4) 3\frac{19}{24} -3\frac{1}{8} = 3\frac{19}{24} -3\frac{3}{24}=\frac{16}{24} =\frac{2}{3} \\ \\ otvet:\frac{2}{3}[/tex]

Пошаговое объяснение:

а)

4 5/6 - (5 3/8 - а) = 4 5/6 - 5 3/8 + а =

4 20/24 - 5 9/24 + а =

4 20/24 - 4 33/24 + а = -13/24 + а

а = -2 1/4

-13/24 + а = -13/24 + (-2 1/4) = -13/24 - 2 1/4 =

-13/24 - 2 6/24 = -2 19/24

б)

1) -2 1/12 + 1 5/8 = -2 2/24 + 1 15/24 =

-1 26/24 + 1 15/24 = -11/24

2) -0,95 - 3,3 = -4,25

3) -11/24 - (-4,25) = -11/24 + 4,25 = -11/24 + 4 1/4 =

-11/24 + 4 6/24 = -11/24 + 3 30/24 = 3 19/24

4) 3 19/24 - 3 1/8 = 3 19/24 - 3 3/24 = 16/24 = 2/3