ini caranya bagaimana? tolong bantu..besok di kumpulkan

a. ⅓ + 27/25 : 9/5
= ⅓ + 27/25 x 5/9
= ⅓ + 3/5
= 5/15 + 9/15
= 14/15
b. 2⅔ x (1½ + 4/5)
= 2⅔ x (3/2 + 4/5)
= 2⅔ x 23/10
= 8/3 x 23/10
= 92/15
= 6 2/15
c. ½ x 1⅓ + 2/9 ÷ 10/6
= ½ x 4/3 + 2/9 x 6/10
= ⅔ + 2/15
= 4/5
d. 1⅔ ÷ 2½ - 3/5 x 1 2/7
= 5/3 ÷ 5/2 - 3/5 x 9/7
= ⅔ - 27/35
= -11/105

maaf kalo salah
semiga membantu

A.   1/3 + (27/25 : 9/5)

1/3 + (27/25 x 5/9)

1/3+ 135/225

75/135/225 = 210/225 :15 =14/15

 

B. 2 2/3 x(1 ½+4/5)

       8/3 x (3/2+4/5)

      8/3 x (15+8/10)

      8/3 x 23/10 = 184/30 = 64/30 = 62/15

C. (1/2 x 11/3) + (2/9 : 10/6)

     (1/2 x 4/3) + ( 2/9 x 6/10)

    4/6 + 12/90

    60+12/90 = 72/90 : 6 = 12/15

D. ( 1 2/3 : 2 ½)- (3/5x1 2/7)

     (5/3 : 5/2) – (3/5x9/7)

     (5/3x2/5) –(3/5x9/7)

     10/15- 27/35 = 70-81/105 = 151/105 = 1 46/105

  maaf kalau salah