№ 7. Представьте в виде десятичной дроби: 3/4; 7/20; 9/25; 3 1/8; 5 2/5; 1 5/12.

1. \(\frac{3}{4}=\frac{75}{100}=0.75\).
2. \(\frac{7}{20}=\frac{35}{100}=0.35\).
3. \(\frac{9}{25}=\frac{36}{100}=0.36\).
4. \(3\frac{1}{8}=3+\frac{1}{8}=3+0.125=3.125\).
5. \(5\frac{2}{5}=5+\frac{2}{5}=5+0.4=5.4\).
6. \(1\frac{5}{12}=1+\frac{5}{12}=1.41\overline{6}\).

Ответ: 0.75; 0.35; 0.36; 3.125; 5.4; \(1.41\overline{6}\).