Question

1) 2) и 3) решите пожалуйста

Answer 1

13/30-11/20=1/60(26-33)=-7/60

-7/60*9/5=-21/100=-0,21

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=300+5/10+9/100=300+0,5+0,09=300,59

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3) =5^36/5^37=5^(-1)=1/5=0.2