(0,411+1 3\8-(-1 3\4)):0,59
(0,411+1 3/8-(-1 3/4)):0,59=(0,411+11/8+7/4):0,59= =(0,411+1,375+1,75):0,59=3,536:0,59=3536/1000 · 100/59=3536/590= =1768/295=5 293/295