Ответ:

Пошаговое объяснение:

[tex]1\frac{5}{7} =\frac{12}{7}[/tex]

[tex]12\frac{3}{14} =\frac{171}{14}[/tex]

[tex]3\frac{7}{100} =\frac{307}{100}[/tex]

[tex]5\frac{6}{23} =\frac{121}{23}[/tex]

Пошаговое объяснение:

1 5/7 = (1*7 + 5)/7 = (7+5)/7 = 12/7

12 3/14 = (12*14 + 3)/14 = (168+3)/14 = 171/14

3 7/100 = (3*100 + 7)/100 = (300+7)/100 = 307/100

5 6/23 = (5*23 + 6)/23 = (115+6)/23 = 121/23