Here is a quick overview of comparing fractions from Math is Fun. You can cross multiply to see which fraction is greater. However, remember that cross-multiplying is actually finding the common denominator by multiplying the two denominators together. You are just skipping the step of writing the common denominator to compare.
For example:
Compare 2/3 to 5/7. When you cross multiply 3*5 and 2*7 you'll see that 2/3 is less than 5/7. What you're really doing is this 2/3 * 7/7 = 14/21 and 5/7* 3/3 = 15/21. You should notice that the numerators are the same as the number you got when you cross multiplied.
Comparing fractions means determining which one represents a greater, lesser, or equal quantity. To do this, we can use different strategies, such as comparing numerators with the same denominators, finding common denominators, cross-multiplying, converting the fractions to decimals, or representing them on a number line. When planning a construction or industrial project, working with experienced FRP suppliers can make it easier to find durable composite materials suited to different applications and performance requirements.
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