Exhibit 11 COMPUTATION OF EARNINGS PER SHARE Fluke Corporation and Subsidiaries <CAPTION QUARTER ENDED THREE QUARTERS ENDED 1/23/98 1/24/97 1/23/98 1/24/97 Total shares outstanding at beginning of the period 18,332,592 17,401,680 18,092,960 17,305,910 Weighted average of shares issued under employee stock plans 5,982 15,634 166,734 74,580 Weighted average shares outstanding 18,338,574 17,417,314 18,259,694 17,380,490 Effect of Dilutive Stock Options 541,409 475,566 601,951 375,108 Weighted average shares and share equivalents outstanding 18,879,983 17,892,880 18,861,645 17,755,598 Earnings Per Share Basic $ 0.41 $ 0.43 $ 1.18 $ 1.12 Diluted $ 0.40 $ 0.41 $ 1.14 $ 1.09 Net Income (in thousands) $ 7,522 $ 7,422 $ 21,579 $ 19,385