-3 2/9 – 2/7 = … Kasih tau caranya juga yaa..

-3 2/9 – 2/7 =-29/9 – 2/7
Cari KPK penyebut nya => 63

63 :9 = 7 -> 7 X -29 / 63 = – 203/63
63 :7 = 9 -> 9 x 2/63 = 18/63

= -203/63 – 18/63
= – 221/63
= – 3  32/63