9*31'-2*58" 4*17'19''-3*39'58'' 1*-1'' 1*-59'59''+1''
9*31'-2*58"
4*17'19''-3*39'58''
1*-1''
1*-59'59''+1''
Ответ(ы) на вопрос:
9*31'-2*58"=9*30'60"-1*60'58"=8*90'60"-1*60'58"=7*30'02"
4*17'19''-3*39'58''=4*16'79''-3*39'58''=3*76'79''-3*39'58''=37'21''
1*-1''= 60'-1"=59'60"-1"= 59'59"
1*-59'59''+1'' =0
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