4 1/2 – 2 6/12 : (2 1/2 + 1 1/4)

=2 1/2 + 1 1/4
= 3 + 2/4 +1/4
= 3 3/4

= 4 1/2 – 2 1/2
= 2

= 2: 3 3/4
=2 : 15 /4
= 2 x 4 / 15
= 8 / 15

udah(: jadiin jawaban terbaik yah

5/2 : 15/4 = 5/2 x 4/15 = 20/30 = 2/3