SigmaHow to convert a Percent to a Fraction? Write down the percent divided by 100 like this: percent/100 If the percent is not a whole number, then multiply both top and bottom by 10 for every number after the decimal point. Simplify the fraction Examples Percent Step 1 Step 2 Step 3 Fraction 13% The
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
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
Previous topic about polynomial is multiplying. If there are two or more simple polynomial that are multiplied it will become complex polynomial. Concept of factoring polynomials is inversely. Starting from complex polynomial become simple polynomial. If the polynomial is divided by one of the simple polynomials then the remainder is zero. It is also called
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
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
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
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
Solving trigonometry’s problem that use right angle can be done by using right triangle and Pythagorean theorem. But, in other problems it does not use right triangle. It uses any triangles. The solution is using law of sines and cosines. It will be more complex than using right triangle but it does not mean difficult.
Inverse Operation is an operation that reverses or undo the effect of another operation. Definition of Inverse Operation What are Inverse Operations? Inverse means reverse in position / direction. The word “inverse” comes from the Latin word “inversus” which means to turn inside out or upside down. Inverse operation in mathematics is an operation that undoes what was done by the previous operation. Most