Simply multiply the entire expression by any number (preferably a positive integer) to obtain an equivalent ratio.
2 : 5 = 2 x 2 : 5 x 2 = 4 : 10
2 : 5 = 2 x 3 : 5 x 3 = 6 : 15
2 : 5 = 2 x 4 : 5 x 4 = 8 : 20.........and so on.
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x = 16 and 2/3 or 16.666666.....recurring decimal Ratios have been increased by 3 and 1/3
You can produce an infinite number of ratios that are equal 3:7. You can do this by simply multiplying both 3 and 7 by the same number, so for example: 3 x 2:7 x 2 6:14 = 3:7 3 x 5:7 x 5 15:35 = 3:7
No
1 to 3, 4 to 12, 5 to 15 etc.
5 to 6 15 to 18 20 to 24