Question

вычислите а)2 3/14 - 19/4 б) 17/12 - 2/3

Answer 1

$2 frac{3}{14} - frac{19}{4} =2 frac{6}{28} - frac{133}{28} = 2 frac{6}{28} - 4 frac{21}{28} = -2 frac{15}{28}$

$frac{9}{12} - frac{2}{3} = frac{9}{12} - frac{8}{12} = frac{1}{12}$

$frac{17}{12} - frac{2}{3} = frac{17}{12} - frac{8}{12} = frac{9}{12} = frac{3}{4}$