Ответ:

Пошаговое объяснение:

1/6x = 7/48

x = 7/48 : 1/6

x = 7/48 * 6/1

x = 7/8

=============

3/4 - 2 1/7 : 3 1/3 = 3/4 - 15/7 : 10/3 = 3/4 - 15/7 * 3/10 = 3/4 - 9/14 = 21/28 - 18/28 = 3/28

3)

[tex]\frac{1}{6} x=\frac{7}{48} \\x = \frac{7}{48} : \frac{1}{6}\\ x=\frac{7*1}{8*1} \\x = \frac{7}{8}[/tex]

4)

[tex]\frac{3}{4} -2\frac{1}{7} : 3\frac{1}{3}\\2\frac{1}{7} : 3\frac{1}{3} = \frac{15}{7} * \frac{3}{10} = \frac{3*3}{7*2} = \frac{9}{14} \\\frac{21}{28} - \frac{18}{28} = \frac{3}{28}[/tex]

Ответ: [tex]\frac{3}{28}[/tex].

Удачи!!!