Question

30 2/21+(5-2 10/21) как решить?

Answer 1

Ответ:

$30 \frac{2}{21} + (5 - 2 \frac{10}{21} )$

$5 - 2 \frac{10}{21} = 2 \frac{21 - 10}{21} = 2 \frac{11}{21}$

$30 \frac{2}{21} + 2 \frac{11}{21} = 32\frac{13}{21}$