5+645+634=5+6\frac45+6\frac34=5+654+643= A19112019\frac{11}{20}192011B18112018\frac{11}{20}182011C1892018\frac{9}{20}18209D1812018\frac{1}{20}18201Answer: 18112018\frac{11}{20}182011 Read Explanation: 5+645+6345+6\frac45+6\frac345+654+643=5+6+6+4/5+3/4=5+6+6+4/5+3/4=5+6+6+4/5+3/4=17+16+1520=17+\frac{16+15}{20}=17+2016+15=17+31/20=17+31/20=17+31/20=17+11120=17+1\frac{11}{20}=17+12011=181120=18\frac{11}{20}=182011 Read more in App