Question

add 6/15 of difference of 23/4and 17/8

Answer 1

(6/15) + (23/4-17/8)
(6/15) + (46-17)/8
6/15 + 29/8
(6*8+29*15)/(15*8)=4.025

Answer 2

6/15+(23/4-17/8)
6/15+29/8
29×8+6×15/120
322/120