tolong dibantu abcde jawabanya gimana plis maklum gak ngerti mm

a) 63:(-9)=-7
b) 2/5 × 1/3=2/15
c) -3 × (2/5-1/3)
-3 × (2/5-1/3=6/15-5/15=1/15)
-3 × 1/15=-3/15=-1/5
d) -4 × 5=-20
e) 2/3:1/3=2/3×3/1=6/3=2

a. 63:-9 = -7
b. 2/5 x 1/3 = 2/15
c. -3x(2/5-1/3) = -6x/5+3x/3 lalu samakan penyebut (bawah). Jadi -18x/15 + 15x/15 = -3x/15, x= 3
d. -4x5 = -20
e. 2/3:1/3 = 2/3x3/1 = 6/3 = 2.
semoga membantu