Question

3 1/3:10+0,175:0,35. -(11/18-1/15):1,4=
1,75-1 1/17×51/56. (0,5×1/9)×3

Answer 1

$3 \frac{1}{3} \div 10 + 0.175 \div 0.35 = \frac{10}{3} \times \frac{1}{10} + 0.5 = \frac{1}{3} + \frac{1}{2} = \frac{5}{6}$

$- ( \frac{11}{18} - \frac{1}{15} ) \div 1.4 = - \frac{49}{90} \div \frac{7}{5} = - \frac{49}{90} \times \frac{5}{7} = - \frac{7}{18}$

$1.75 - 1 \frac{1}{17} \times \frac{51}{56} = \frac{7}{4} - \frac{18}{17} \times \frac{51}{56} = \frac{7}{4} - 9 \times \frac{3}{28} = \frac{7}{4} - \frac{27}{28} = \frac{11}{14}$

$(0.5 \times \frac{1}{9} ) \times 3 = ( \frac{1}{2} \times \frac{1}{9} ) \times 3 = \frac{1}{18} \times 3 = \frac{1}{6}$