Mathematics is the study of numbers, shapes, and patterns.

We can obtain common denominators by multiplying both numerator (top) and denominator (bottom) by the same amount. For example, consider the addition of two fractions that do not have the same denominator: Addition of 2 ⁄ 5 and 1 ⁄

Explain math

Mathematics is the study of numbers, shapes, and patterns.

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How to Find Common Denominators The easiest way to find a common denominator for a pair of fractions is to multiply the numerator and denominator of each

Calculate the least common multiple LCM (3; 7; 13) LCM (3; 7; 13) = 273. Find additional factors for each fraction, for this divide LCM by the denominators of each fraction: 273 : 3 = 91 (factor