22/15+41/7:(12/5-25/7)=
1) 12/5-25/7=84/35-125/35=-41/35
2) 41/7+(-41/35)=205/35-41/35=164/35=4 24/35
3) 22/15+ 4 24/35=22/15+164/35=154/105+492/105=646/105=6 16/105
19/11+40/19*(9/5-11/8)
1) 9/5- 11/8=72/40-55/40=17/40
2) 40/19* 17/40=17/19
3) 19/11+17/19=361/209+187/209=548/209=2 130/209