I have done the math and know the final number but with the hand held caclualtor it doesn't come up correctly. I've tried three or four others as well as some online calculators but it still comes up wrong.
Here the calculation and you give it a try. 111 7/8 - 52 15/16 = ?
I figure the calculators are rounding but why? Wouldn't it be programed to give exact number regardless? Maybe someone knows why.