Question

помогите пожалуйста ‍♂️‍♂️срочно!!
1) 15 1/5+ 19 4/5= 2) 35 7/9+ 12 2/3= 3) 28 3/12× 24=

Answer 1

$15 frac{1}{5} + 19 frac{4}{5} = 34 frac{5}{5} = 35 \ 35 frac{7}{9} + 12 frac{2}{3} = 35 frac{7}{9} + 12 frac{6}{9} = 47 frac{13}{9} = 48 frac{4}{9} \ 28 frac{3}{12} times 24 = frac{339 times 24}{12} = frac{339 times 2}{1} = 678$