4/18
6. 12 5/6 - 3 5/12 - 1 1/2 = 77/6 - 41/12 - 3/2 = 154/12 - 41/12 - 18/12 = 95/12
= 7 11/12
7. 15 9/11 + 2 1/22 - 1 1/2 = (15 + 2 - 1) + 9/11 + 1/22 - 1/2
= 16 + 18/22 + 1/22 - 11/22 = 16 8/22 = 16 4/11
8. 20 2/3 + 5 3/5 - 2 2/15 = (20 + 5 - 2) + 2/3 + 3/5 - 2/15 = 23 + 10/15 + 9/15 - 2/15
= 23 + 17/15 = 23 + 1 2/15 = 24 2/15
9. 24 8/9 - 12 1/6 - 3 1/2 = (24 - 12 - 3) + 8/9 - 1/6 - 1/2 = 9 + 16/18 - 3/18 - 9/18 = 9 4/18 = 9 2/9
10. 50 5/6 - 5 5/12 - 4 1/8 = (50 - 5 - 4) + 5/6 - 5/12 - 1/8 = 41 + 20/24 - 10/24 - 3/24 = 41 7/24
Itulah kunci jawaban kunci jawaban Matematika kelas 5 halaman 12 dan halaman 13 tentang hitungan penjumlahan dan pengurangan bilangan pecahan.