Пошаговое объяснение:

[tex]1)1 \div 8 = \frac{1}{8} [/tex]

[tex]2)2 \div 5 = \frac{2}{5} [/tex]

[tex]3)15 \div 7 = \frac{15}{7} = 2 \frac{1}{7} [/tex]

[tex]4)20 \div 4 = \frac{20}{4} = 5[/tex]

[tex]5)72 \div 10 = \frac{36}{5} = 7 \frac{1}{5} [/tex]