1)-27/20(-5/9)=27/20*5/9=3/4*1/1=3/4
2)5/24(-22/5)=1/12(-11/1)=-11/12
3)3/4-(-11/12)=3/4+11/12=9/12+11/12=20/12=1 8/12=1 2/3
Ответ:1 2/3
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1)-27/20(-5/9)=27/20*5/9=3/4*1/1=3/4
2)5/24(-22/5)=1/12(-11/1)=-11/12
3)3/4-(-11/12)=3/4+11/12=9/12+11/12=20/12=1 8/12=1 2/3
Ответ:1 2/3