Question

(49 2/9-25)-(11 4/7-2/3)=

Answer 1

Відповідь:(49 2/9 - 25) - ( 11 4/7 -2/3)=(416/9-25)-(86/7-2/3)=191/9-244/21=605/63=9 38/63

Answer 2

Переводим смешанные дроби в неправильные:

$(49frac{2}{9} - 24frac{9}{9}) - (frac{81}{7} - frac{2}{3}) = 13frac{20}{63}$

1) $48frac{11}{9} - 24frac{9}{9} = 24frac{2}{9}$

2) $frac{81}{7} - frac{2}{3} = frac{243}{21} - frac{14}{21} = frac{229}{21} = 10frac{19}{21}$

НОЗ: 21

3) $frac{218}{9} - frac{229}{21} = frac{1526}{63} - frac{687}{63} = frac{839}{63} = 13frac{20}{63}$

НОЗ: 63