Simplifying Complex Fraction in which Numerator is a Fraction

Another way to simplify a complex fraction: $Simplifying complex fractions when its numerator is a fraction.$

Note:: The example is a fraction divide by a whole number.; A whole number can be itself divide by 1.; A complex fraction can be written as a new fraction whose numerator is the products of the inner items and denominator is the products of the outer items.; The new fraction may have common factors.