Question

найдете значение выражения

Answer 1

$frac{1}{ frac{1}{35} - frac{1}{60} } = frac{1}{ frac{12}{420}- frac{7}{420} } = frac{1}{ frac{5}{420} } = frac{1}{ frac{1}{84} } = frac{1}{1} : frac{1}{84} = frac{1*84}{1*1} = frac{84}{1} = 84$