Заполните пустые места 3) ∆ 2/5=22/5;8 ∆/9=77/9 ;∆ 6/11=61/11;12 ∆/4=51/4

Question

Заполните пустые места 3) ∆ 2/5=22/5;
8 ∆/9=77/9 ;
∆ 6/11=61/11;
12 ∆/4=51/4

Answer 1

22/5=(4*5+2)/5=4 2/5
77/9=(8*9+5)/9=8 5/9
61/11=(5*11+6)/11=5 6/11
51/4=(4*12+3)/4=12 3/4