Question

10 7/12- 9/12=(10/12+7/12)- 9/12

Answer 1

10.58-.75=(.83+.58)-.75
9.83=1.41-.75
9.83=.66
Hope this helps :)

Answer 2

10.58-.75=(.83+.58)-.75
9.83=1.41-.75
9.83=.66