Question

сократите дроби: 2640/5544,8a²b/36ab³c,56×78/29×56-56×16;

Answer 1

$\frac{2640}{5544} = \frac{660}{1386} = \frac{110}{231}$
$\frac{8 {a}^{2}b }{36 {a}^{3}b } = \frac{2}{9a}$