Question

Решите пожалуйста дам 10 балов​

Answer 1

$\displaystyle\\\\\frac{1}{111}-\frac{1}{148}=\frac{1}{3*37}-\frac{1}{4*37}=\frac{4*1}{4*3*37}-\frac{3*1}{3*4*37}=\frac{4}{12*37}-\frac{3}{12*37}=\frac{1}{444}$