a) 3/4 : 1/5 - 1/6 b) 7/5 x (3/8:1/2)
= 3/4 x 5/1 - 1/6 = 7/5 x 3/8 x 2/1
= 15/4 -1/6 = 42/40
= 45/12 - 2/12 = 21/20
=43/12
c) 4 : 2/7 + 1/4. d) (1/5 + 1/2) : 2/3
= 4/1 x 7/2 + 1/4. =7/10 x 3/2
=28/2 + 1/4. = 21/20
= 57/4
Penjelasan dengan langkah-langkah:
No. A
= 4/3 ÷ 1/5 - 1/6
= Perkalian dan pembagian harus dikerjakan duluan daripada pertambahan atau pengurangan
= 4/3 ÷ 1/5
= Dalam pembagian pecahan, dua angka di belakang saling tuker, lalu tandanya diganti jadi kali
= 4/3 ÷ 1/5 -> 4/3 × 5/1
= 4/3 × 5/1
= 20/3 - 1/6
= 20/18 - 1/18
= (20 × 6)/18 - 1/18
= 120/18 - (1 × 3)/18
= 120/18 - 3/18
= 117/18
= 117 ÷ 3/18 ÷ 3
= 39 ÷ 3/6 ÷ 3
= 13/2
No. B
= 5/7 × (3/8 ÷ 1/2)
= Yang berada di dalam kurung, tandanya harus dikerjakan duluan
= 3/8 ÷ 1/2
= 3/8 ÷ 1/2 -> 3/8 × 2/1
= 3/8 × 2/1
= 6/8 × 5/7
= 30/56
= 30 ÷ 2/56 ÷ 2
= 15/28
No. C
= 4 ÷ 2/7 + 1/4
= 4 ÷ 2/7
= 4/1 ÷ 2/7
= 4/1 ÷ 2/7 -> 4/1 × 7/2
= 4/1 × 7/2
= 28/2 + 1/4
= 28/8 + 1/8
= (28 × 4)/8 + 1/8
= 112/8 + (1 × 2)/8
= 112/8 + 2/8
= 114/8
= 114 ÷ 2/8 ÷ 2
No. D
= (1/5 + 1/2) ÷ 2/3
= 1/5 + 1/2
= 1/10 + 1/10
= (1 × 2)/10 + 1/10
= 2/10 + (1 × 5)/10
= 2/10 + 5/10
= 7/10 ÷ 2/3
= 7/10 ÷ 2/3 -> 7/10 × 3/2
= 7/10 × 3/2
= 21/20
== 00 == 00 ==
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Semoga dapat membantu! :)
#backtoschool2019
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a) 3/4 : 1/5 - 1/6 b) 7/5 x (3/8:1/2)
= 3/4 x 5/1 - 1/6 = 7/5 x 3/8 x 2/1
= 15/4 -1/6 = 42/40
= 45/12 - 2/12 = 21/20
=43/12
c) 4 : 2/7 + 1/4. d) (1/5 + 1/2) : 2/3
= 4/1 x 7/2 + 1/4. =7/10 x 3/2
=28/2 + 1/4. = 21/20
= 57/4
Penjelasan dengan langkah-langkah:
No. A
= 4/3 ÷ 1/5 - 1/6
= Perkalian dan pembagian harus dikerjakan duluan daripada pertambahan atau pengurangan
= 4/3 ÷ 1/5
= Dalam pembagian pecahan, dua angka di belakang saling tuker, lalu tandanya diganti jadi kali
= 4/3 ÷ 1/5 -> 4/3 × 5/1
= 4/3 × 5/1
= 20/3 - 1/6
= 20/18 - 1/18
= (20 × 6)/18 - 1/18
= 120/18 - (1 × 3)/18
= 120/18 - 3/18
= 117/18
= 117 ÷ 3/18 ÷ 3
= 39 ÷ 3/6 ÷ 3
= 13/2
No. B
= 5/7 × (3/8 ÷ 1/2)
= Yang berada di dalam kurung, tandanya harus dikerjakan duluan
= 3/8 ÷ 1/2
= Dalam pembagian pecahan, dua angka di belakang saling tuker, lalu tandanya diganti jadi kali
= 3/8 ÷ 1/2 -> 3/8 × 2/1
= 3/8 × 2/1
= 6/8 × 5/7
= 30/56
= 30 ÷ 2/56 ÷ 2
= 15/28
No. C
= 4 ÷ 2/7 + 1/4
= Perkalian dan pembagian harus dikerjakan duluan daripada pertambahan atau pengurangan
= 4 ÷ 2/7
= 4/1 ÷ 2/7
= Dalam pembagian pecahan, dua angka di belakang saling tuker, lalu tandanya diganti jadi kali
= 4/1 ÷ 2/7 -> 4/1 × 7/2
= 4/1 × 7/2
= 28/2 + 1/4
= 28/8 + 1/8
= (28 × 4)/8 + 1/8
= 112/8 + (1 × 2)/8
= 112/8 + 2/8
= 114/8
= 114 ÷ 2/8 ÷ 2
= 57/4
No. D
= (1/5 + 1/2) ÷ 2/3
= Yang berada di dalam kurung, tandanya harus dikerjakan duluan
= 1/5 + 1/2
= 1/10 + 1/10
= (1 × 2)/10 + 1/10
= 2/10 + (1 × 5)/10
= 2/10 + 5/10
= 7/10 ÷ 2/3
= Dalam pembagian pecahan, dua angka di belakang saling tuker, lalu tandanya diganti jadi kali
= 7/10 ÷ 2/3 -> 7/10 × 3/2
= 7/10 × 3/2
= 21/20
== 00 == 00 ==
Maaf jika ada yang salah dalam proses menghitung atau ada yang kurang..
Semoga dapat membantu! :)
#backtoschool2019