Another common struggle: the parts-of-a-whole problem. Fractions are introduced through the “pizza model,” but students’ ...

Save guides, add subjects and pick up where you left off with your BBC account. There are two rules to remember when adding or subtracting fractions. The fractions need to have a common denominator.

Teachers also link the number line to other fraction representations ... She gave the example of the “butterfly” method of adding and subtracting fractions, which relies a multiplication ...

They add and subtract fractions with the same denominator ... Using visual fraction models – number lines, fraction bars (see example below), understand how fractions can be equal (equivalent ...