4) (11 19/48-9 11/32)+(-8-4 5/12)=
-10 35/96
1) 11 19/48-9 11/32=11 38/96-9 33/96=
2 5/96
2)-8-4 5/12=-12 5/12
3)2 5/96-12 5/12=2 5/96-12 40/96=
-10 35/96
5) 1) 18 13/24 + 19/60 = 18 65/120 + 38/120 = 18 103/120
2) 8 13/20 - 18 103/120 = — (18 103/120 — 8 13/120) = -10 100/120 = -10 5/24
3) -10 5/24 + 10 5/24 = 0