придумайте и решите три примера с дробями
1.( )+( )-( )*( )
2.( ( )*( )-( ) )
3. ( )*( ):( )+( )
1.( )+( )-( )*( )
2.( ( )*( )-( ) )
3. ( )*( ):( )+( )
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1) 1/12+10/12-(-1/3)*(-9/12)=1/12+10/12-3/12=11/12-3/12=8/12=2/3