Start by completing the calculation using positive numbers first, then use the sign rules to find the sign of the answer. Image caption, This multiplication table includes both positive and negative ...

Dividing Fractions: When dividing fractions, you can achieve the same result by multiplying the first fraction by the reciprocal of the second fraction. A fraction consists of a numerator and a ...

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 ...