A memory device includes: a computing module; and an in-memory computing (IMC) macro comprising: a memory comprising a plurality of bit cells storing pieces of fraction data of a first data set; and an IMC computing module configured to perform an operation between the pieces of fraction data of the first data set read from the memory and pieces of fraction data of a second data set received from an input control module, wherein a plurality of pieces of data included in the first data set share a first exponent, and wherein a plurality of pieces of data included in the second data set share a second exponent.