Hasil dari 2¹/5:1¹/5-1¼=

(11/5 x 5/6)-5/4 = 11/6 -5/4 =22/12 – 15/12 = 7/12

(11/5 x 5/6) – 5/4
= 11/6 – 5/4
= 22/14 – 15/12
= 7/12