Question

x+1 4/9=4 2/7
решить уравнение ​

Answer 1

$\displaystyle \: x = \frac{179}{63} = 2 \frac{53}{63}$

Пошаговое объяснение:

$x + 1 \frac{4}{9} = 4 \frac{2}{7} \\ x = 4 \frac{2}{7} - 1 \frac{4}{9} \\ x = \frac{30}{7} - \frac{13}{9} \\ x = \frac{30 \times 9}{7 \times 9} - \frac{13 \times 7}{9 \times 7} \\ x = \frac{270}{63} - \frac{91}{63} \\ x = \frac{179}{63 } = \frac{126}{63} + \frac{53}{63} \\ x = 2 \frac{53}{63}$