jawaban besera caranya dongg

7) 5/17 : 35/34 + 1 5/7 x 2 2/3
= 5/17 x 34/35 + 12/7 x 8/3
= 2/7 + 32/7
= 34/7
= 4 6/7 (D)

8) 2 1/2 - 5/6 + 0,125 : 3/8
   = 5/2 - 5/6 + 125/1000 x 8/3
   = 5/2 - 5/6 + 1/3 
   = 30/12 - 10/12 + 4/12
   = 20/12 + 4/12
   = 24/12
   = 2 (B)

1.)5/17:35/34+1 5/7x2 2/3
=5/17:35/34
=5/17x34/35
=170/595
=170/595:85/85
=2/7
=1 5/7x2 2/3
=12/7x8/3
=96/21
=96/21:3/3
=32/7=4 4/7
=2/7+4 4/7
=2/7+32/7
=34/7
=4 6/7

2.)2 1/2-5/6+0.125:3/8
=0.125:3/8
=1000/3000
=1000/3000:1000/1000
=1/3
=2 1/2-5/6
=5/2-5/6
=10/6
=10/6:2/2
=5/3
=1 2/3
=1 2/3+1/3
=5/3+1/3
=6/3
=6/3:3/3
=2/1
=2