Question

(Корень 2 6/11 + корень 15 10/11) ÷ корень 31 2/11

Answer 1

(√2 6/11+√15 10/11)÷√31 2/11=
1)√2 6/11:√31 2/11=√28/11:√343/11=
√28/11×√11/343=√28/343
2)√15 10/11:√31 2/11=√175/11×11/343=√175/343
3)√28/343+√175/343=√203/343=√27/49=
√9×3/49=3/7√3