Question

Сократите:
а)6×13/26×12;
б)24×14/49×36; в)3×4×5/6×12×50;
г)9×20-9×7/9×23+9×3

Answer 1

$frac{6 times 13}{26 times 12} = frac{1}{2 times 2} = frac{1}{4}$
$frac{24 times 14}{49 times 36} = frac{4}{7 times 3} = frac{4}{21}$
$frac{3 times 4 times 5}{6 times 12 times 50} = frac{1}{2 times 3 times 10} = frac{1}{60}$
$frac{9 times 20 - 9 times 7}{9 times 23 + 9 times 3} = frac{20 - 7}{23 + 3} = frac{13}{26} = frac{1}{2}$