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.

Fractions can be added in different ways: When the denominators are the same, add the numerators. Sometimes the final answer can be simplified. close simplify (a fraction)To reduce a fraction to its ...

Use visual fraction models to add and subtract fractions with the same denominators. Use visual fraction models to add and subtract fractions with the same denominators. Notice patterns in the ...

Click to see a step-by-step slideshow. Image caption, STEP 1 - When adding fractions it can be useful to visualise it. Draw a square with 4 columns and shade in one of the columns. This represents ¹/₄ ...