hasil dari 6/9- 3/7+5/6 ??

6/9 - 3/7 + 5/6

= 2/3 - 3/7 + 5/6

= 28/42 - 18/42 + 35/42

= 10/42 + 35/42

= 45/42 = 1 3/42 = 1 1/14

6/9 - 3/7
= 42 -27 / 63
= 15 / 63
=> 15/63 +5/6
=> 6(15) + 63(5) / 63(6)
=> 90 + 315 /378
=> 405 / 378