Question

решите:
1. 17/18 + 1 целая 5/12 - 1/6;
2. 3 целых 4/10 - 1 целая 3/5

Answer 1

$frac{17}{18}+1 frac{5}{12}- frac{1}{6}= frac{17}{18} +frac{17}{12} - frac{1}{6}=frac{17*2}{36} +frac{17*3}{36} - frac{6}{36}=frac{34}{36} +frac{51}{36} - frac{6}{36}= frac{79}{36}=$
$=2 frac{7}{36}$

$3 frac{4}{10} -1 frac{3}{5}=3 frac{2}{5}-1 frac{3}{5}=2 frac{7}{5}-1 frac{3}{5}=1 frac{4}{5}$