Question

сократить дробь 27*5-27*4/9*8+9*7+9*6

Answer 1

$frac{27*5-27*4}{9*8+9*7+9*6}= frac{27(5-4)}{9(8+7+6)}= frac{3*1}{1*21}= frac{3}{21}= frac{1}{7}$