tolong di jawab yg bener dan pake cara nya

b) 1½ + 40% - 0,3 ÷ ¹/9
= 3/2 + 40/100 - 3/10 × 9/1
= 150/100 + 40/100 - 270/100
= (-80/100)
= (-2/5)

c) 1½ × 40/100 + 0,3 ÷ 1/9
= 3/2 × 40/100 + 3/10 × 9/1
= 3/5 + 27/10
= 6/10 + 27/10
= 33/10
= 3,3

d) 1½ ÷ 40% - 0,3 × 1/9
= 3/2 × 100/40 - 3/10 × 1/9
= 15/4 - 1/30
= 225/30 - 2/30
= 223/30
= 7 13/30