Question

Вычислите: 2/3 * 2/5 4/3 * 5/7 3/10 * 3/10 3/4 * 7/5 5/7 * 9/11

Answer 1

$\frac{2}{3} * \frac{2}{5} = \frac{4}{15}$
$\frac{4}{3} * \frac{5}{7} = \frac{20}{21}$
$\frac{3}{10} * \frac{3}{10} = \frac{9}{100} = 0,09$
$\frac{3}{4} * \frac{7}{5} = \frac{21}{20} = ]1 \frac{1}{20} = 1,05$
$\frac{5}{7} * \frac{9}{11} = \frac{45}{77}$

Answer 2

2/3*2/5=4/15
4/3*5/7=20/21
3/10*3/10=3/100
3/4*7/5=21/20=1 1/20
5/7*9/11=45/77