Question

дам 35 балов!!!
помогите!!!
решите в связной записи.

Answer 1

1) 2 1/2 -17/24=

=5/2-17/24=

=60-204/24=

=8 -144/24=

=48/24=2=

Ответ:4,24

Answer 2

$20 - 17 - 19 \frac{2}{4} + 17 \frac{3}{4} + 2 \frac{1}{2} - \frac{17}{24} = \\ 3 - 1 \frac{3}{4} + 2 \frac{1}{2} - \frac{17}{24} = \\ 3 + \frac{10 - 7}{4} - \frac{17}{24} = \\ 3 + \frac{18 - 17}{24} = 3 \frac{1}{24}$
$25 - 8 - 13 - 2 + 2 - 1 + \frac{7}{9} - \frac{3}{4} - \frac{5}{12} - \frac{11}{18} + \frac{1}{6} - \frac{5}{9} = \\ 3 + \frac{28 - 27 - 15 - 22 + 6 - 20}{36} = \\ 3 - 1\frac{7}{18} = 1 \frac{11}{18}$