Question

Simplify: [ ( -2/3 )³ + 4/9 ] ÷ ( 5/3 )³​

Answer 1

Answer:

4/25

explanation

solution of 1st bracket

-2/3 whole cube is =-8/27

lcm of 9 and 27 is 27 itself so on multiplying 4 and 9 by 3 ' 4/9 becomes 12/27

-8/27+12/27=4/27

2nd bracket

5/3 whole cube = 5cube/3cube =25/27

on dividing both

4/27 / 25/27  = 4/27 x 27/25 = 4/25 (to divie multiply by reciprocal of denominator)