= 1 + (4x5) + (3x6)
______________
30
20 +18
= 1 + ______
30
= 1 + 38/30 (38 : 30 = 1 8/30)
= 1 + 1 8/30
= 2 8/30 = 2 4/15 (disederhanakan lagi jadi jawaban A)
6. Hasil dari 1 1/3 - 4/5 adalah...
A. 7/15 B. 2/5 C. 8/15 D. 3/5
jawaban : C
Cara :
1 1/3 - 4/5 =
= 4/3 - 4/5
= (4x5) - (4x3)
____________
15