9)2.1/(6.6-2.4)=2.1/4.2=0.5
10)7.2/(8.3-8.6)=-7.2/0.3=-24
11) 9.2/(0.5-2.8)=-9.2/2.3=-4
12)9.4/(4.1+5.3)=9.4/9.4=1
13)(9.5+8.9)/2.3=18.4/2.3=8
14)(6.8-4.7)/1.4=2.1/1.4=1.5
15)(1.7+3.8)/2.2=5.5/2.2=2.5
16)(7.2-6.1)/2.2=1.1/2.2=0.5
9)2.1/(6.6-2.4)=2.1/4.2=0.5
10)7.2/(8.3-8.6)=-7.2/0.3=-24
11) 9.2/(0.5-2.8)=-9.2/2.3=-4
12)9.4/(4.1+5.3)=9.4/9.4=1
13)(9.5+8.9)/2.3=18.4/2.3=8
14)(6.8-4.7)/1.4=2.1/1.4=1.5
15)(1.7+3.8)/2.2=5.5/2.2=2.5
16)(7.2-6.1)/2.2=1.1/2.2=0.5