Question

7- 4целых 6/9=
12целых 7/18-5целых 17/18
ПОМОГИТЕ

Answer 1

$4 frac{6}{9} = frac{42}{9} \ 12 frac{7}{18} = frac{223}{18} \ 5 frac{17}{18} = frac{107}{18} \ frac{7}{1} - frac{42}{9} = frac{223}{18}- frac{107}{18} \ frac{-35}{9} = frac{116}{18}$