Compare the size of two numbers √ (5 / 12) + √ (1 / 5) and √ (1 / 3) + √ (2 / 7)

Compare the size of two numbers √ (5 / 12) + √ (1 / 5) and √ (1 / 3) + √ (2 / 7)

[√ (5 / 12) + √ (1 / 5)] & sup2; = 5 / 12 + 1 / 5 + 2 √ (5 / 12 * 1 / 5) = 37 / 60 + 2 √ (1 / 12) [√ (1 / 3) + √ (2 / 7)] & sup2; = = 1 / 3 + 2 / 7 + 2 √ (1 / 3 * 2 / 7) = 13 / 21 + 2 √ (2 / 21) 13 / 21 > 37 / 602 / 21 > 1 / 12, so 13 / 21 + 2 √ (2 / 21) > 37 / 60 + 2 √ (1 / 12) so √ (1 / 3)