tlng jwb sebisannya pliss

Mapel : Matematika
Kelas : V SD
Bab : Pecahan

Pembahasan :
1/3 x 2/3
= (1 x 2)/(3 x 3)
= 2/9

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2/6 x 3/7
= (2 : 2)/(6 : 2) x 3/7
= 1/3 x 3/7 ————» Coret 3 ny
= 1/7

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1 1/2 x 4 1/3
= 3/2 x 13/3 ——» Coret 3 ny
= 13/2
= 6 1/2

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0,25 x 0,3
= 25/100 x 3/10
= 1/4 x 3/10
= (1 x 3)/(4 x 10)
= 3/40

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1,8 x 20%
= 18/10 x 20/100
= 9/5 x 1/5
= (9 x 1)/(5 x 5)
= 9/25

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1/4 : 3/4
= 1/4 x 4/3 ——» Coret 4
= 1/3

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1/3 : 3/5
= 1/3 x 5/3
= (1 x 5)/(3 x 3)
= 5/9

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1 3/5 : 3 1/2
= 8/5 : 7/2
= 8/5 x 2/7
= (8 x 2)/(5 x 7)
= 16/35

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0,6 : 0,15
= 6/10 : 15/100
= 3/5 : 3/20
= 3/5 x 20/3 ——» Coret 3 ny
= 20/5
= 4

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40% : 0,8
= 40/100 : 8/10
= 4/10 : 8/10
= 4/10 x 10/8 ——» Coret 10
= 4/8
= 1/2