Find: 315÷123.
Step 1: Convert the mixed fractions.
First, convert the mixed fractions into a proper fractions. That is
315=3+15=15+15=165
123=1+23=3+23=53
Step 2: Compute the required value.
315÷123=165÷53
=165×35 [ Taking the reciprocal ]
=4825
Hence, the value of 315÷123 is 4825.