Question

помогите пж, прошу ​

Answer 1

a)15-8+3= 10=1

20 20 2

10

б). 3

Answer 2

a:

$frac{15}{20}-frac{8}{20}+frac{3}{20}   = frac{10}{20} = frac{1}{2}$

б:

$6frac{3}{12}+2frac{11}{12}=8frac{14}{12}   =9frac{2}{12} =9frac{1}{6}$

в:

$7-4frac{3}{7}=2frac{4}{7}$

б:

$8frac{5}{12} - 2frac{11}{12}=7frac{17}{12}-2frac{11}{12}=5frac{6}{12}=5frac{1}{2}$