Question

4/14+6/21=
3/4+2/16=
Сложите дроби и сократите полученную дробь.

Answer 1

$frac{4}{14} + frac{6}{21} = frac{3*4}{3*14} + frac{2*6}{2*21} = frac{12}{42 } + frac{12}{42} = frac{24}{42} = frac{4}{7} \ frac{3}{4} + frac{2}{16} = frac{12}{16} + frac{2}{16} = frac{14}{16} = frac{7}{8}$