Describe the forward cross-rates in German terms

Question

Calculate the 30-, 90-, & 180-day forward cross exchange rates among the German mark and the Swiss franc by using the most current quotations. Describe the forward cross-rates in "German" terms.

The formulas we desire to use are:
                        F_N(DM/SF) = F_N($/SF)/F_N($/DM)
                                           or
                        F_N(DM/SF) = F_N(SF/$)/F_N(DM/$).
We will employ the top formula which employs American term forward exchange rates.
                        F₃₀(DM/SF)    = .6408/.5246 = 1.2215
                        F₉₀(DM/SF)    = .6453/.5270 = 1.2245
                        F₁₈₀(DM/SF)  = .6518/.5307 = 1.2282