(2.25+1 целая 7/8)/1 целая 2/5-3.5

Question

(2.25+1 целая 7/8)/1 целая 2/5-3.5

Answer 1

2,25+ 1 7/8=2 1/4+1 7/8=9/4+15/8=18+15/8=23/8=2,875
2,875 / 1 2/5= 2 7/8 /7/5=23/8*5/7=115/56=2 3/56
2 3/56-3,5=115/56-7/2=115-196/56=81/56=1 25/56