Matematika

Pertanyaan

carilah bilangan pengganti huruf berikut.
1. 2/4 = a/8
2. 3/b = 9/15
3. c/20 = 5/4
4. 5/6 = 30/d
5. e/15 = 1/3
6. 7/4 = 49/f
7. 9/3 = 27/g
8. 14/6 = h/3
9. 12/3 = 28/i
10. 25/6 = 75/j

tolong dijawab pake caranya...

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