Question

Решите пример:
(+ 3 1/9) + (-5/18)
​

Answer 1

$3\frac{1}{9} + (-\frac{5}{18} ) = 3\frac{2-5}{18} = 2 \frac{18+2-5}{18} = 2 \frac{20-5} {18} = 2 \frac{15}{18} = 2\frac{5}{6}$

Answer 2

Ответ:

$2\frac{5}{6}$

Пошаговое объяснение:

$3\frac{1}{9}+(-\frac{5}{18})=3\frac{1}{9}-\frac{5}{18}=\frac{1+3*9}{9}-\frac{5}{18}=\frac{28}{9}-\frac{5}{18}=\frac{28*2}{9*2}-\frac{5*1}{18*1}=\frac{56}{18}-\frac{5}{18}=\frac{56-5}{18}=\frac{51}{18}=\frac{17*3}{6*3}=\frac{17}{6}=\frac{2*6+5}{6}=2\frac{5}{6}$