(10 5/8-12 1/4)-(-0.035-0.04)=

(10 5/8-12 1/4)-(-0,035-0,04)=(10 5/8-12 2/8)-(-0,075)=-1 5/8+0,075= -1 5/8+75/1000=-1 25/40+3/40=-1 22/40=-1 11/20