If you were to add \(\frac{1}{2}\) and \(\frac{1}{3}\), it is hard to picture what the answer would be. Rewriting the fractions with a common bottom number, or denominator (in this case, \({6}\)), ...
Many children never master fractions. When asked whether 12/13 + 7/8 was closest to 1, 2, 19, or 21, only 24% of a nationally representative sample of more than 20,000 US 8th graders answered ...