In adding and subtracting fractions with unlike denominators, you have to get a least common denominator which is exactly like the least common multiple it just so happens to be in the denominator.

“Who would draw a picture to divide 2/3 by 3/4?” asked Marina Ratner, a professor emerita of mathematics at the University of California at Berkeley, in a recent Wall Street Journal opinion piece.

Fractions, often perceived as daunting, become manageable with the right approach. Addition and subtraction require finding a common denominator, while multiplication involves directly multiplying ...

Fractions are the basis for most higher-level mathematics. Students need to master the numerical values in earlier grades to tackle topics like algebra later. There’s only one hitch: Fractions can ...

NEW YORK--(BUSINESS WIRE)--Common Denominator (formerly known as Top Honors), a New York City-based non-profit that provides free 1-on-1 math tutoring to middle-schoolers from the city’s underserved ...

Looking at this fraction is a little bit different than looking at the other complex fractions that we've dealt with. However, we can make it look like the other complex fractions. But first of all, ...

NEW YORK, July 29, 2025 /PRNewswire/ -- Loeb Leadership is proud to announce that Gordon Loeb, Co-Founder and President, has been appointed to the Executive Board of Common Denominator (C/D), a ...