Tentukan pecahan biasa yang menyatakan hasil operasi berikut a. 6 1/5 + 2 3/7 x 5/6 : 5/6 b. 12,5 % + 7/32 - 5/64

a)
6 1/5 + 2 3/7 x 5/6 : 5/6
= (6+2) + (1/5 + 3/7 x 5/6 : 5/6)
= 8 + (1/5 + 1/7 x 5/2 : 5/6)
= 8 + (1/5 + 5/14 x 6/5)
= 8 + (1/5 + 1/14 x 6/1)
= 8 + (1/5 + 6/14)
= 8 + (14/70 + 30/70)
= 8 + 44/70
= 8 + 22/35
= 8 22/35
= 222/200
= 111/100