Question

помогите пожалуйста N*466 (7,8,9)

Answer 1

7. 5/12-1/12=(5-1)/12=4/12=1/3
8. 7/15-11/15=(7-11)/15=-4/15
9. 5/16-1/6=(5*3)/(16*3)-(1*8)/(6*8)=15/48-8/48=(15-8)/48=7/48