Least Common Denominator

How Do You Find a Common Denominator and a Least Common Denominator?

This tutorial gives you some practice finding a common denominator and the least common denominator of three fractions. There's only one least common denominator, but there are many common denominators. This tutorial gives you one. Can you find another?
How Do You Put Fractions in Order Using an LCD?

Ordering fractions from least to greatest? Don't have common denominators? You could find the least common denominator (LCD) of the fractions and write equivalent fractions with this LCD. Then, compare the numerators to figure out their order from least to greatest! This tutorial shows you how!
How Do You Compare Fractions by Finding a Common Denominator?

Ordering fractions from least to greatest? Don't have common denominators? Find a common denominator by multiplying the denominators together. Use that common denominator to create equivalent fractions. Then, compare the numerators to figure out which is bigger! This tutorial shows you how!