As frações simplificadas são 1/4, 3/5, 1/8, 5/6, 3/4 e 2/7.

Fazendo os MDC teremos:

35,140\2

35,70\2

35,35\5

7,7\7

1,1

MDC(35,140) = 5 . 7 = 35

35/140 = 1/4

129,215\3

43,215\5

43,43\43

1,1

MDC(129,215) = 43

129/215 = 3/5

128,1024\2

64,512\2

32,256\2

16,128\2

8,64\2

4,32\2

2,16\2

1,8\2

1,4\2

1,2\2

1,1

MDC(128/1024) = 2^7 = 128

128/1024 = 1/8

200,240\2

100,120\2

50,60\2

25,30\2

25,15\3

25,5\5

5,1\5

1,1

MDC(200,240) = 2 . 2 . 2 . 5 = 40

200/240 = 5/6

606,808\2

303,404\2

303,202\2

303,101\3

101,101\101

1,1

MDC(606,808) = 2 . 101 = 202

606/808 = 3/4

250,875\2

125,875\5

25,175\5

5,35\5

1,7\7

1,1

MDC(250,875) = 5 . 5 . 5 = 125

250/875 = 2/7

Bons estudos!