a. 1/3 + 27/25 : 9/5 b. 2 2/3 × ( 1 1/2 + 4/5) c. 1/2 × 1 1/3 + 2/9 : 10/6 d. 1 2/3 : 2 1/2 - 3/5 × 1 2/7 tolong pake cara ya, besok d kumpul terimakasih

a. 1/3 + (27/25 : 9/5)
1/3 + 3/5 = 5/15 + 9/15
= 14/15
b. 2 2/3 * (1 1/2 + 4/5) = 2 2/3 * (1 5/10 + 8/10)
= 2 2/3 * (1 13/10)
= 2 2/3 * 2 3/10
= 8/3 * 23/10
= 6 4/30
= 6 2/15