Answer
$\frac{153}{20}$
Work Step by Step
To get the answer, we subtract the fractions.
$11\frac{1}{4}-3\frac{3}{5}=\frac{11*4+1}{4}-\frac{3*5+3}{5}=\frac{45}{4}-\frac{18}{5}$
Now find LCD of fractions: 20.
Write fractions with LCD as denominator
$\frac{45}{4}-\frac{18}{5}=\frac{45*5}{4*5}-\frac{18*4}{5*4}=\frac{225}{20}-\frac{72}{20}=\frac{225-72}{20}=\frac{153}{20}$
