5*9\6*7*30=1*9\6*7*6= 1*3\2*7*6=1*1\2*7*2=1\28
<span>3*4*25\24*15=3*4*5\24*3=1*1*5\6=5\6</span>
68432|94
658. |728
------
263
188
- - - -
_752
752
- - - -
0
1/4 + 3/5 = 5/20 + 12/20 = 17/20
9/11 - 2/5 = 45/55 - 22/55 = 23/55
13/16 - 9/32 = 26/32 - 9/32 = 17/32