5/9-2/9=0,(3)
19/20-9/20=0,5
17/150+13/150=0,2
4/12+1/12=0,416666667
15/22+2/22=0,772727273
78/100-27/100=0,51
17/20+8/33=1,09242424
5/33+8/33=0,2470156106
43/44-21/44=0,5
5/9-2/9=0,(3)
19/20-9/20=0,5
17/150+13/150=0,2
4/12+1/12=0,416666667
15/22+2/22=0,772727273
78/100-27/100=0,51
17/20+8/33=1,09242424
5/33+8/33=0,2470156106
43/44-21/44=0,5