Question

(12 3/7-18 3/14+15 3/28):3

Answer 1

$(12 frac{12}{28} -18 frac{6}{28} +15 frac{3}{28}):3= (27 frac{15}{28} -18frac{6}{28}):3= 9 frac{9}{28}:3=9 frac{9}{28}* frac{1}{3} = 9frac{3}{28}(12 frac{3}{7} -18 frac{3}{14} +15 frac{3}{28} ):3= (12 frac{3*4}{28} -18 frac{3*2}{28} +15 frac{3}{28}):3= (12 frac{12}{28} -18 frac{6}{28}$