Question

19/7 : 38/63 × 8/9 =
помогите ааа​

Answer 1

$\frac{19}{7} \div \frac{38}{63} \times \frac{8}{9} = \frac{19}{7} \times \frac{63}{38} \times \frac{8}{9}$

сократим 19 и 38 на 19, а 7 и 63 на 7

$\frac{9}{2} \times \frac{8}{9} = 4$