What are some tricks to compare fractions?

Comparing Fractions Quickly. When given two fractions, there is a cool little trick to help figure out which fraction is the larger. Let's compare 3/8 and 4/9. Multiply the numerator of the first fraction (the top number in the fraction) by the denominator (the bottom number in the fraction) of the second fraction. read more

If the numbers are big, try taking logarithm, to some convenient base, of the given fractions. [math]\therefore[/math], compare between [math]\log_{x} a[/math] and [math]\log_{x} b[/math], [math]xinmathbb{R^{+}} - (0,1)[/math]. read more

To compare fractions, we use the same cross-multiplication steps shown above to see which fractions are larger or smaller. This is how to compare fractions: If the denominators are the same, the fraction with the larger numerator is the larger fraction. read more