1.8 1/6 + 7 2/4= 2.8 2/6 × 3 6/10 ÷ 12/15= 3.12 4/8 - 5 3/6= 4.banyak simetri lipat bangun belah ketupat adalah= 5.9/14 ÷ 3 3/6= tolong donk hari ini dikumpul :

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Nomor 1
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= 8 1/6 + 7 2/4
= (8 + 7) + (1/6 + 2/4)
= 15 + (2/12 + 6/12)
= 15 + (8/12)
= 15 + (2/3)
= 15 2/3

Nomor 2
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8 2/6 × 3 6/10 ÷ 12/15 =

= 8 1/3 × 3 3/5 ÷ 4/5 
= 25/3 x 18/5 : 4/5
= 25/3 x 18/5 x 5/4
= 25/3 x 18/4
= 25 x 6/4
= 25 x 3/2
= 75/2
= 37 1/2


Nomor 3
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12 4/8 - 5 3/6 =
= 12 1/2 - 5 1/2
= (12 - 5) + (1/2 - 1/2)
=  7 


Nomor 4
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Banyak simetri lipat bangun belah ketupat adalah 4 cara


nomor 5
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9/14 ÷ 3 3/6 = 
= 9/14 : 3 1/2
= 9/14 : 7/2

= 9/14 x 2/7
= 9/7 x 1/7

= 9/49

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