Step 1: Making the denominators of the rational number equal to LCM
Given numbers: 4,−313.
∴ Denominator of 4 = 1.
and denominator of −313 is 13.
LCM of 1 and 13 = 13.
∴41=4×131×13=5213
Step 2: Subtracting 5213 from −313
=−313−5213
=−3−5213
=−−5513 [∵ denominators are same, i.e., 13 then subtract the numerators]
Hence, the required answer is −5513.