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.

When adding or subtracting fractions, you need to look at the denominator. If the denominator is the same, then you can just add or subtract the numerator. If the denominator is different, then you ...

Each fraction has the same denominator. Use the numerators to order the fractions. The smaller the numerator, the smaller the fraction. The numerators are all the same. Use the denominators to order ...

Fractions knowledge by grade 5 uniquely predicts success in higher mathematics. Yet, assessments show that too many students struggle with this critical foundational math skill from grade 3 onward.

Fractions are a foundational piece for tackling mathematics at all levels of schooling. Students need to understand how two numbers interact with each other as numerators and denominators, as ratios, ...