1)-9,5-3 7/20 =-9.5-3.35=-12.85
2)6,7-(4 8/25) =6.7-4.32=2.38
3)-10,3-(-2 3/5) =-10.3+2.6=-7.7
4)18,7-(+20 1/4)=18.7-20.25=-1.55
1)-9,5-3 7/20 =-9.5-3.35=-12.85
2)6,7-(4 8/25) =6.7-4.32=2.38
3)-10,3-(-2 3/5) =-10.3+2.6=-7.7
4)18,7-(+20 1/4)=18.7-20.25=-1.55