Вычислите:
а) $\frac{7}{12} - \frac{1}{4}$;
б) $\frac{22}{27} - \frac{5}{9}$;
в) $\frac{3}{10} - \frac{43}{10000}$;
г) $\frac{31}{100} - \frac{21}{1000}$.
$\frac{7}{12} - \frac{1}{4} = \frac{7}{12} - \frac{1^{(3}}{4} = \frac{7 - 3}{12} = \frac{4}{12} = \frac{1}{3}$
$\frac{22}{27} - \frac{5}{9} = \frac{22}{27} - \frac{5^{(3}}{9} = \frac{22 - 15}{27} = \frac{7}{27}$
$\frac{3}{10} - \frac{43}{10000} = \frac{3^{(1000}}{10} - \frac{43}{10000} = \frac{3000 - 43}{10000} = \frac{2957}{10000}$
$\frac{31}{100} - \frac{21}{1000} = \frac{31^{(10}}{100} - \frac{21}{1000} = \frac{310 - 21}{1000} = \frac{289}{1000}$
Пожауйста, оцените решение
