tolong jawab di kumpulkan besok

= 6/10 + 1/2 : (2/3 - 1/4) ×5/4
= 6/10 + 1/2 : ( 8/12 - 3/12 ) × 5/4
= 6/10 + 1/2 : 5/12 × 5/4
= 6/10 + 1/2 × 12/5 × 5/4
= 6/10 + 60/40 = 64/40 = 1 24/40= 1 3/5