Question

помогите с премером дробь 18 1/30 - 17 2/3

Answer 1

$18 \frac{1}{30} - 17 \frac{2}{3} = 18 \frac{1}{30} - 17 \frac{20}{30} = 17 \frac{31}{30} - 17 \frac{20}{30} = \frac{11}{30}$