First rational number mixed operation 20 points, to process and answer

First rational number mixed operation 20 points, to process and answer

(1) 2 ^ (- 3 / 7) x 4 / 7 ^ (- 5 / 7)
= 2×(7/3)×(4/7)×7/36
=14/27
(2) 2 / 3 (- 2 / 3) - 4x / 21 (- 1 / 4)
= -2/3×3/8+4/21×7/3
=-1/4+4/9
=7/36
(3) - 2 1 / 2 ^ (- 10) X3 1 / 3 ^ (- 5 / 6)
= -5/2×1/10×10/3×6/5
=-1
(4) 2 / 3 (- 2 / 3) - 4x / 21 (- 1 / 4)
=Same as 2
(5) 2 and 15 / 16 (- 1 / 8)
=-47/16×8
= -47/2
(6) (- 24) x (3 / 1-4 + 1 / 6-5 / 8)
=-24+18-4+15
=5

Elden Ring Premiere

RELATED INFORMATIONS