Вычисли 5 2/3 : ( 7 5/12 - 1 3/4 )²

Question

Вычисли 5 2/3 : ( 7 5/12 - 1 3/4 )²

Answer 1

5 2/3 : ( 7 5/12 - 1 3/4 )² = 3/17
1) 7 5/12 - 1 3/4 = 7 5/12 - 1 9/12 = 6 17/12 - 1 9/12 = 5 8/12 = 5 2/3
2) 5 2/3 * 5 2/3 = 17/3 * 17/3 = 289/9 = 32 1/9
3) 5 2/3 : 32 1/9 = 17/3 : 289/9 = 17/3 * 9/289 = 1/1 * 3/17 = 3/17