(3,7-5,8)-(-1/36-8/9)+1,3=...... решите

(3,7-5,8)-(-(1/36)-(8/9))+1,3=-2,1-((-1-32)/36)+1,3=-0,8-(-33/36)=(-8/10)+(33/36)=(-8/10)+(11/12)=(-48+55)/60=7/60