No, it is false -9 is less than 4 .
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No not always true. Say you have a mixed number of 4 and 9/10 tines a fraction 9/10 you have 49/10 x 9/10 = 441/100 = 4.41 which is greater than 4
The answer is greater than, because 7 divided by 9 is .777777, and 2 divided by 4 is .5 .777 is greater than .5, and so 7/9ths is the greater of the two equations
We can convert both ninths and sevenths into a common fraction, by multiplying nine by seven, to get 63. So, 4/9 = 28/63 and 3/7 = 27/63. You can then easily see that 28/63 is exactly 1/63 larger than 27/63. So it is true, 4/9 is indeed greater than 3/7. Not much greater, but slightly greater.
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