Berapa hasil dari pecahan 3 5/8-1 1/2-1 1/4​

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Berapa hasil dari pecahan 3 5/8-1 1/2-1 1/4​

Jawab:

3 5/8 – 1 1/2 – 1 1/4 = 29/8 – 3/2 – 5/4

KPK =          2          4         8

           1       2     2   2     2  4

                                        2  2

2 = 1 X 2

4 =2^{2}

8 =2^{3}  

KPK = 1 X 2^{3}  = 1 X 8 = 8

29/8 – 3/2 – 5/4

3/2 = 12/8

5/4 = 10/8

= 29 – 12 – 10 /8 = 7/8 ( 0.875 / 87.5% )