Double its denominator.
2/5
The answer depends on what you want to turn into a fraction. And, incidentally, I do not turn into a fraction.
It isn't clear what you want to calculate. Add fractions? Multiply them? Convert fraction to decimal? Decimal to fraction? The details of the calculations, of course, vary depending on what you want to calculate.
10
You have to double the numerator, but the value of the fraction remians the same but if you dont double the numerator then you dont have the same fraction
To halve a fraction, double the denominator (the bottom number). To double a fraction, double the numerator (the top number).
The answer depends on what you want to do with the fraction.
The answer depends on what you want to do with the fraction.
One half of one fifth is one tenth. You just 'double' the denominator if you want to get half of the fraction.
If you double the denominator of any fraction, the number of unit fractions stays the same but each unit fraction is half as big. So the value of the fraction is half what it was when you double the denominator. 2×(5/8)=(2×5)/8=10/8
Double its denominator.
The answer depends on what you want the fraction for.
The answer depends on what you want to "do" into a fraction or decimal. Not all numbers can be "done" into a fraction.
2/5
The answer depends on what you want to convert to a fraction and a fraction of what other quantity.
The answer depends on what you want to turn into a fraction. And, incidentally, I do not turn into a fraction.