Вычислите: 7/4 : 5; 12/5 : 4; 3/4 : 4; 9/2 : 25; 1/10 : 2.

1. \(\frac74:5=\frac74\cdot\frac15=\frac7{20}\)
2. \(\frac{12}{5}:4=\frac{12}{5}\cdot\frac14=\frac35\)
3. \(\frac34:4=\frac34\cdot\frac14=\frac3{16}\)
4. \(\frac92:25=\frac92\cdot\frac1{25}=\frac9{50}\)
5. \(\frac1{10}:2=\frac1{10}\cdot\frac12=\frac1{20}\)

Ответ: 7/20; 3/5; 3/16; 9/50; 1/20.