2.132 Запишите в виде: 3 7 13 1 17 101 а) десятичной дроби , , , , , ; 4 50 25 8 250 200 б) обыкновенной несократимой дроби 0,3; 0,5; 0,25; 0,28; 0,45; 0,80; 0,125; 0,25; 0,75; 0,765.

а)

• $$\frac{3}{4} = 0.75$$
• $$\frac{7}{50} = 0.14$$
• $$\frac{13}{25} = 0.52$$
• $$\frac{1}{8} = 0.125$$
• $$\frac{17}{250} = 0.068$$
• $$\frac{101}{200} = 0.505$$

б)

• $$0.3 = \frac{3}{10}$$
• $$0.5 = \frac{1}{2}$$
• $$0.25 = \frac{1}{4}$$
• $$0.28 = \frac{7}{25}$$
• $$0.45 = \frac{9}{20}$$
• $$0.80 = \frac{4}{5}$$
• $$0.125 = \frac{1}{8}$$
• $$0.25 = \frac{1}{4}$$
• $$0.75 = \frac{3}{4}$$
• $$0.765 = \frac{153}{200}$$

Ответ: а) 0.75, 0.14, 0.52, 0.125, 0.068, 0.505; б) $$ \frac{3}{10}$$, $$ \frac{1}{2}$$, $$ \frac{1}{4}$$, $$ \frac{7}{25}$$, $$ \frac{9}{20}$$, $$ \frac{4}{5}$$, $$ \frac{1}{8}$$, $$ \frac{1}{4}$$, $$ \frac{3}{4}$$, $$ \frac{153}{200}$$.