Answer
$=7\frac{13}{20}$
Work Step by Step
$11\frac{1}{4} - 3\frac{3}{5}$
$=11\frac{5}{20} - 3\frac{12}{20}$
$=10\frac{25}{20} - 3\frac{12}{20}$
$=7\frac{13}{20}$
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