Question

Выполните действия плиз

Answer 1

3.
1) 1/3 - 5/16 = 16/48 - 15/48 = 1/48
2) 1/6 - 1/8 = 4/24 - 3/24 = 1/24
3) 1/48 : 1/24 = 1/48 * 24/1 = 1/2

4.
1) 5/7 - 2/3 = 15/21 - 14/21 = 1/21
2) 4/9 - 5/12 = 16/36 - 15/36 = 1/36
3) 1/21 : 1/36 = 1/21 * 36/1 = 12/7 = 1 5/7

Answer 2

$( frac{1}{3} - frac{5}{16} ) : ( frac{1}{6} - frac{1}{8} ) = ( frac{16-15}{48}) : ( frac{4-3}{24}) = frac{1}{48} :frac{1}{24} = frac{1}{48} * frac{24}{1} = frac{1}{2} = 0,5$
 $(frac{5}{7} - frac{2}{3}) : ( frac{4}{9} - frac{5}{12} ) = (frac{15-14}{21}) : (frac{16-15}{36}) = frac{1}{21} : frac{1}{36} = frac{1}{21} * frac{36}{1} = frac{1}{7} * frac{12}{1} = frac{12}{7}$