EXHIBIT 12 TELEPHONE AND DATA SYSTEMS, INC. RATIOS OF EARNINGS TO FIXED CHARGES FOR THE YEAR ENDED DECEMBER 31, 1997 (DOLLARS IN THOUSANDS, EXCEPT RATIO AMOUNTS) EARNINGS: Income from Continuing Operations before Income Taxes.......................... $ 19,010 Add (Deduct): Minority Share of Losses..................................................... (43,409) Earnings on Equity Method.................................................... (76,945) Distributions from Minority Subsidiaries..................................... 56,413 Amortization of Capitalized Interest......................................... 1,301 Minority share of income in majority-owned subsidiaries that have fixed charges.................................................................... 22,125 --------- (21,505) Add fixed charges: Consolidated interest expense................................................ 90,473 Interest Portion ( 1/3) of Consolidated Rent Expense......................... 14,480 Amortization of debt expense and discount on indebtedness.................... 795 --------- $ 84,243 --------- --------- FIXED CHARGES: Consolidated interest expense.................................................. $ 90,473 Capitalized interest........................................................... 11,035 Interest Portion ( 1/3) of Consolidated Rent Expense........................... 14,480 Amortization of debt expense and discount on indebtedness...................... 795 --------- $ 116,783 --------- --------- RATIO OF EARNINGS TO FIXED CHARGES............................................... 0.72 --------- --------- Tax-Effected Redeemable Preferred Dividends.................................... $ 213 Fixed Charges.................................................................. 116,783 --------- Fixed Charges and Redeemable Preferred Dividends............................. $ 116,996 --------- --------- RATIO OF EARNINGS TO FIXED CHARGES AND REDEEMABLE PREFERRED DIVIDENDS............ 0.72 --------- --------- Tax-Effected Preferred Dividends............................................... $ 3,498 --------- --------- Fixed Charges.................................................................. 116,783 --------- Fixed Charges and Preferred Dividends........................................ $ 120,281 --------- --------- RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED DIVIDENDS....................... .70 --------- --------- 86