## Reciprocal of a Fraction

Fractions A Fraction (such as 2/3) has two numbers: Numerator: the top number Denominator: the bottom number We call the top number the Numerator, it is the number of parts we have. We call the bottom number the Denominator, it is the number of parts the whole is divided into. Reciprocal of a Fraction To … Continue reading "Reciprocal of a Fraction"

Read More## Least Common Multiple

Common Multiple A common Multiple number is a multiple of two or more numbers. Example Multiple of 3 and 4: Number Multiples 3 3, 6, 9, 12, 15, 18, 21, 24, … 4 4, 8, 12, 16, 20, 24, … So, the common multiples of 3 and 4 are: 12, 24, … Least Common Multiple … Continue reading "Least Common Multiple"

Read More## Pythagoras Theorem

When a triangle has a right angle (90°) and squares are made on each of the 3 sides, then the biggest square has the exact same area as the other 2 squares put together! Pythagoras Theorem can be written in one short equation: a2 + b2 = c2 Where: c is the longest side of the triangle … Continue reading "Pythagoras Theorem"

Read More## How to Find Intercepts From an Equation

x Intercept is where the graph of an equation crosses the x-axis y Intercept is where the graph of an equation crosses the y-axis How To find the intercepts What Intercept Steps x intercepts (x, 0) 1. Set y=02. Solve for x y intercepts (0, y) 1. Set x=02. Solve for y Learn More General … Continue reading "How to Find Intercepts From an Equation"

Read More## Greatest Common Factor

Greatest Common Factor (GCF) or Highest Common Factor (HCF) is the largest of the common factors. Greatest Common Factor is useful to simplify a fraction, because it is the largest number we can divide both numerator and denominator of a fraction. How to Find the Greatest Common Factor Method 1 find all factors of both … Continue reading "Greatest Common Factor"

Read More## Simplifying Square Roots

To simplify a square root, make the number inside the square root as small as possible. How to Simplifying Square Roots Rule where a, b > 0 Simplifying Square Roots for Fractions Rule Surds Surd is a root we can’t simplify further. So √5 is a surd. But √9 = 3 is not a surd. Learn … Continue reading "Simplifying Square Roots"

Read More## Inverse Operation

Inverse Operation is an operation that reverses or undo the effect of another operation. Properties of Inverses There are 4 mathematical properties for inverses Operation. Additive Inverse Property when you add a number to its opposite, the result is always 0. x + (-x) = 0 Multiplicative Inverse Property when you multiply any number except zero by its opposite, the result is … Continue reading "Inverse Operation"

Read More## Exterior Angle Theorem

Exterior Angle Theorem For a triangle The exterior angle d equals the angles b plus c. (d = b + c) The exterior angle d is greater than angle b and angle c. (do > bo, do > co) Proof d = b + c : a + b + c = 180° (Because the interior angles of … Continue reading "Exterior Angle Theorem"

Read More