Question

Помогите пожалуйста номер 475,476

Answer 1

№457 $1) frac{1}{4} + frac{1}{3} = frac{4+3}{12} = frac{7}{12}$
$2) frac{1}{6} + frac{1}{3} = frac{6+3}{18} = frac{9}{18} = frac{1}{2}$
$3)frac{1}{3} + frac{1}{10} = frac{10+3}{30} = frac{13}{30}$
$4) frac{1}{4} + frac{1}{8} = frac{4+8}{32} = frac{12}{32} = frac{3}{8}$
№458$1) frac{1}{9} + frac{1}{5} = frac{9+5}{45} = frac{14}{45}$
$2) frac{1}{4}+ frac{1}{10} = frac{4+10}{40} = frac{14}{40} = frac{7}{20}$$3) frac{1}{6} + frac{1}{4} = frac{6+4}{24} = frac{10}{24}$$4) frac{1}{9} + frac{1}{4} = frac{9+4}{36} = frac{13}{36}$