19. Subtract. Reduce the answer if you can.

1 ÷ 1⁄3 Checkmark signature line 1⁄2÷ 1⁄4 Checkmark signature line

2 ÷ 1⁄5 Checkmark signature line 6⁄10÷ 1⁄5 Checkmark signature line

2⁄3÷ 1⁄3 Checkmark signature line 1⁄2÷ 1⁄8 Checkmark signature line

5⁄8÷ 1⁄8 Checkmark signature line 1⁄2÷ 1⁄10 Checkmark signature line