KUNCI JAWABAN Matematika Kelas 5 Halaman 13 Kurikulum 2013, Materi Tentang Operasi Hitung Pecahan

1. 2/3 + 3/4 - 1/6 =
= 8/12 + 9/12 – 2/12
= 15/12 = 1 3/12
= 1 1/4

2. 9/10 – 2/5 + 3/4 =
=18/20 – 8/20 + 15/20
= 25/20 = 5/4
= 1 1/4

3. 1 3/5 + 2 1/6 – 1/2 =
= 1 18/30 + 2 5/30 – 15/30
= 3 23/30 – 15/30 = 3 8/30
= 3 4/15

4. 2 2/3 + 4 3/5 – 4/15 =
=2 10/15 + 4 9/15 – 4/15
= 6 19/15 – 4/15
= 6 15/15
= 7

5. 8 8/9 – 2 1/6 – 1/2 =
= 8 16/18 – 2 3/18 – 9/18
= 6 13/18 – 9/18
= 6 4/18
= 6 2/9

6. 12 5/6 – 2 1/6 – 1/2 =
= 12 5/6 – 2 1/6 – 3/6
= 10 4/6 – 3/6
= 10 1/6

7. 15 9/11 + 2 1/22 – 1 1/2 =
= 15 18/22 + 1 1/22 – 1 11/22
= 16 19/22 – 1 11/22
= 15 18/22
= 15 9/11

8. 20 2/3 + 2 3/5 – 2 2/15 =
= 20 10/15 + 2 9/15 – 2 2/15
= 22 1/15 – 2 2/15
= 21 16/15 – 2 2/15
= 19 14/15

9. 24 8/9 – 12 1/6 – 3 1/2 =
= 24 16/18 – 12 3/18 – 3 9/18
= 12 13/18 – 3 9/18 = 9 4/18
= 9 2/9

10. 50 5/6 – 5 5/12 – 4 1/8 =
= 50 20/24 – 5 10/24 – 4 3/24
= 45 10/24 – 4 3/24
= 41 7/24

Pasangkanlah operasi hitung berikut yang mempunyai nilai sama!

1. 6 1/6 + 5 5/12 – 4 1/3
= 6 2/12 + 5 5/12 – 4 4/12
= 11 7/12 – 4 4/12
= 7 3/12
= 7 1/4 (d)

2. 5 4/5 – 2 7/10 – 1 1/4
= 5 16/20 – 2 14/20 – 1 5/20
= 3 2/20 – 1 5/20
= 2 22/20 – 1 5/20
= 1 17/20 (a)

3. 10 5/8 – 4 5/12 + 2 3/4
= 10 15/24 – 4 10/24 + 2 18/24
= 6 5/24 + 2 18/24
= 5 29/24 – 2 18/24
= 3 11/24 (e)

4. 12 5/6 + 3 1/12 – 5 1/4
= 12 10/12 + 3 1/12 – 5 3/12
= 15 11/12 – 5 3/12 = 10 8/12
= 10 2/3 (c)

5. 15 – 5 4/16 – 4 1/8
= 14 16/16 – 5 4/16 – 4 2/16
= 9 12/16 – 4 2/16
= 5 10/16
= 5 5/8 (b)

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