1.34/7-(1 2/5+1/5)=3 4/7- 1 3/5=2 4/7-3/5=1 34/35
2. 3/8-1/4+18/14= 6/16 +18/14=48×126:48=3,6
3. 1/2-4/24+3=12-8:24+3=4/24+3=3 1/6
4. (1/60:(4/18+7/36)=1/60: 15/36=6/150=0,04
5.1/4+5/7×2 4/9=1/4+110/63=1/4+1 47/63=2,1
6. 13 - 2 5/6:24/24=13 - 2 5/6= 10 1/6
7. (1 2/4 -12/18):1/2=2:1/2=4