bantuin pke cara ( NGASAL REPORT) makasi yang udh mau bntuin bkl aku jdiin jwbn terbaik,, yg atas itu cra pengerjaannya ya
PKE CARA+DITULIS DI KALI/BAGI BERAPA
PKE CARA+DITULIS DI KALI/BAGI BERAPA
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1. 3 1/3 × 1/2 ÷ 2 3/6
= 10/3 × 1/2 × 15/6
= 10/3 × 1/2 × 5/2
= 10/3 × 1/2 × 2/5
= 10 × 1 × 2/3 × 2 × 5
= 10 × 2/6 × 5
= 20 ÷ 10/30 ÷ 10
= 2/3
2. 0,15 × 3 1/2 ÷ 25%
= 15/100 × 7/2 × 25/100
= 3/20 × 7/2 × 1/4
= 3/20 × 7/2 × 4/1
= 3 × 7 × 4/20 × 2 × 1
= 21 × 4/40 × 1
= 84 ÷ 4/40 ÷ 4
= 21/10
= 2 1/20
3. 1 4/5 ÷ 0,25 × 2,2
= 9/5 × 25/100 × 22/10
= 9/5 × 1/4 × 11/5
= 9/5 × 4/1 × 11/5
= 9 × 4 × 11/5 × 1 × 5
= 36 × 11/5 × 5
= 396/25
= 15 21/25
4. 6 1/2 ÷ 3 1/3
= 13/2 × 10/3
= 13/2 × 3/10
= 13 × 3/2 × 10
= 39/20
= 1 19/20
5. 45% × 1/2 ÷ 1/8
= 45/100 × 1/2 × 1/8
= 9/20 × 1/2 × 8/1
= 9 × 1 × 8/20 × 2 × 1
= 9 × 8/40 × 1
= 72 ÷ 8/40 ÷ 8
= 9/5
= 1 4/5
6. 2,25 × 1/4 ÷ 50%
= 225/100 × 1/4 × 50/100
= 9/4 × 1/4 × 1/2
= 9/4 × 1/4 × 2/1
= 9 × 1 × 2/4 × 4 × 1
= 9 × 2/16 × 1
= 18 ÷ 2/16 ÷ 2
= 9/8
= 1 1/8
7. 1 4/5 × (40% ÷ 0,25)
= 9/5 × (40/100 × 25/100)
= 9/5 × (2/5 × 1/4)
= 9/5 × (2 × 1/5 × 4)
= 9/5 × 2/20
= 9/5 × 1/10
= 9 × 1/5 × 10
= 9/50
8. 2/5 × 6,25 ÷ 1 1/9 × 24%
= 2/5 × 625/100 × 10/9 × 24/100
= 2/5 × 25/4 × 9/10 × 12/25
= 2 × 25 × 9 × 12/5 × 4 × 10 × 25
= 50 × 9 × 12/20 × 10 × 25
= 450 × 12/200 × 25
= 5.400 ÷ 200/5.000 ÷ 200
= 27/25
= 1 2/25
9. 2 4/5 ÷ (20% × 1,25) ÷ 1/2
= 14/5 × (20/100 × 125/100) × 1/2
= 14/5 × (1/5 × 5/4) × 1/2
= 14/5 × (1 × 5/5 × 4) × 1/2
= 14/5 × 5/20 × 1/2
= 14/5 × 1/4 × 1/2
= 14 × 1 × 1/5 × 4 × 2
= 14 × 1/20 × 2
= 14 ÷ 2/40 ÷ 2
= 7/20
10. 3/5 × 2/3 ÷ 0,15
= 3/5 × 2/3 × 15/100
= 3/5 × 2/3 × 3/20
= 3/5 × 2/3 × 20/3
= 3 × 2 × 20/5 × 3 × 3
= 6 × 120/15 × 3
= 720/45
= 16