1)(55/57-57/95) : (122/133)=(275/285-171/285) : (122/133)=104/285 : 122/133=
=104/285 * 133/122=364/9152) (8/225 -4/105):(6/35 - 2/45)=(56/1575-60/1575):(54/315-14/315)=-4/1575:40/315=
=-4/1575*315/40=-1/50
1)(55/57-57/95) : (122/133)=(275/285-171/285) : (122/133)=104/285 : 122/133=
=104/285 * 133/122=364/915
2) (8/225 -4/105):(6/35 - 2/45)=(56/1575-60/1575):(54/315-14/315)=-4/1575:40/315=
=-4/1575*315/40=-1/50