Выполните вычитание
a)5 2/3 - 4 1/3 ;
б)12 1/3 - 9 1/4 ;
в)5 2/3 - 1/6 ;
г)10 8/9 - 2/3 ;
д)6 3/4 - 2 1/2;
е)4 3/5 - 1 1/10

$5frac{2}{3} - 4frac{1}{3} = frac{17}{3} - frac{13}{3} = frac{4}{3} = 1frac{1}{3}$
$12frac{1}{3} - 9frac{1}{4} = frac{37}{3} - frac{37}{4} = frac{148-111}{12} = frac{37}{12} = 3frac{1}{12}$
$5 frac{2}{3} - frac{1}{6} = frac{17}{3} - frac{1}{6} = frac{34-1}{6} = frac{33}{6} = frac{11}{2} =5 frac{1}{2}$
$10 frac{8}{9} - frac{2}{3} = frac{98}{9} - frac{2}{3} = frac{98-6}{9} = frac{92}{9} = 10frac{2}{9}$
$6frac{3}{4} - 2frac{1}{2} = frac{27}{4} - frac{5}{2} = frac{27-10}{4} = frac{17}{4} =4 frac{1}{4}$
$4frac{3}{5} - 1frac{1}{10} = frac{23}{5} - frac{11}{10} = frac{46-11}{10} = frac{35}{10} = 3frac{5}{10}$