2 5/8* 24* 6 2/3

Question

*=time, multiply

Answer 1

2 5/8 = 2 + 5 / 8 = 16 / 8 + 5 / 8 = 21 / 8

6 2/3 = 6 + 2 / 3 = 18 / 3 + 2 / 3 = 20 / 3


2 5/8 * 24 * 6 2/3 = ( 21 / 8 ) * 24 * ( 20 / 3) =

( 21 * 24 * 20 ) / ( 8 * 3 ) =

( 21 * 20 ) * ( 24 / 24 ) =

21 * 20 * 1 = 420

Answer 2

5a-6b,3a-b