Ответ:
- а) \(\frac{11}{4}-\frac{2}{5}=\)\(\frac{47}{20}\);
- б) \(\frac{1}{5}-\frac{3}{4}=\)\(-\frac{11}{20}\);
- в) \(\frac{1}{4}-\frac{3}{25}=\)\(\frac{13}{100}\);
- г) \(\frac{9}{4}+\frac{8}{5}=\)\(\frac{77}{20}\);
- д) \(\frac{1}{2}-\frac{9}{25}=\)\(\frac{7}{50}\);
- е) \(\frac{14}{25}+\frac{3}{2}=\)\(\frac{103}{50}\);
- ж) \(\frac{11}{5}+\frac{13}{4}=\)\(\frac{109}{20}\);
- з) \(5,6:(8,5-2,9)=5,6:5,6=\)1;
- и) \(9,4:(4,1+5,3)=9,4:9,4=\)1;
- к) \(9,2:(0,5-2,8)=9,2:(-2,3)=\)−4;
- л) \(1,6:(2,6-1,8)=1,6:0,8=\)2;
- м) \(2,4:(5,4-7,8)=2,4:(-2,4)=\)−1;
- н) \(2,1:(6,6-2,4)=2,1:4,2=\)0,5;
- о) \(1,2:(6,7-7,3)=1,2:(-0,6)=\)−2.
