Предмет: математика.
a)
$$\frac{3}{4} = 0.75$$
$$\frac{7}{50} = 0.14$$
$$\frac{13}{25} = 0.52$$
$$\frac{1}{8} = 0.125$$
$$\frac{17}{250} = 0.068$$
$$\frac{101}{200} = 0.505$$
б)
$$0.3 = \frac{3}{10}$$
$$0.5 = \frac{1}{2}$$
$$0.25 = \frac{1}{4}$$
$$0.28 = \frac{7}{25}$$
$$0.45 = \frac{9}{20}$$
$$0.80 = \frac{4}{5}$$
$$0.125 = \frac{1}{8}$$
$$0.25 = \frac{1}{4}$$
$$0.75 = \frac{3}{4}$$
$$0.765 = \frac{153}{200}$$