To solve is:
\(1 \frac{1}{4} - 1 \frac{1}{5}\)
making it into an improper fraction:
\(\frac{1+4}{4} - \frac{1+5}{5}\)
\(\frac{5}{4} - \frac{6}{5}\)
bringing to a common denominator (which is 20, since they have no factors in common)
\(\frac{5*5}{20} - \frac{6*4}{20}\)
\(\frac{25}{20} - \frac{24}{20}\)
the answer is then:
\(\frac{1}{20}\)
