What are negative numbers ... to add and subtract fractions Have a go at adding and subtracting fractions with matching and different denominators. How to multiply fractions Join the gang at ...

For example, the fraction 8/10 simplifies to 4/5 by dividing the numerator and denominator ... subtracting the powers. \(d^4 \div d^5 = d^{4 - 5} = d^{-1}\). This is an example of a negative ...