1) (-5/12 - 7/30) ÷ (13/15)= (-25/60 - 14/60) ÷ (13/15)= (-39/60) ÷ (13/15)= (-39/60) * (15/13)= -585/780= -65/78
2) (1/4 - 5/18) 36= (9/36 - 10/36) 36= (-1/36) * 36= -1
1) (-5/12 - 7/30) ÷ (13/15)
= (-25/60 - 14/60) ÷ (13/15)
= (-39/60) ÷ (13/15)
= (-39/60) * (15/13)
= -585/780
= -65/78
2) (1/4 - 5/18) 36
= (9/36 - 10/36) 36
= (-1/36) * 36
= -1