Numerator and Denominator Numerator In math, the top number of a fraction that shows how many parts we have, is known as numerator. Denominator In math, the bottom number of a fraction that shows the number of equal parts of an item is divided into, is known as denominator. Numerator : Top number of a fraction Example: […]

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  Acute Angle When two rays are joined together at a common point, an angle is formed. Definition: Acute angle: A angle whose measure is more than 0 degree and less than 90 degree is called a acute angle. ∠AOB is a acute angle, it’s measure 45º, which is less then 90 degree and more then […]

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Cross multiplication – Examples and Formula In this lesson we will learn about cross multiplication, and also learn in brief how to useful cross multiplication to solve the problems. To understand the cross multiplication first we see the parts of a fraction.    Parts of a fraction We know that a fraction has a division bar and two numbers. […]

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Proper and Improper Fractions Proper Fraction: Definition A “Proper Fraction” is a fraction whose numerator is smaller than it’s denominator. Example: In below figure 1/5, is a proper fraction because numerator 1 is smaller than denominator 5. Similarly, 4/9, 3/7 and 5/8 are a proper fractions because every fraction has numerator is smaller than denominator. Some more […]

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What is an Acute Triangle: Definition, Formula and Properties In geometry, a triangle is a polygon with three sides, three vertices and three interior angles. In other words a triangle is a closed two dimensional plane figure with three sides and three angles. Triangles are classified on the basis of their sides and angles. There […]

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Variables and Algebraic Expressions Definition: Variable Variables are symbol or letters that used to represent for unknown numbers or values. simply a single letter, that represents a number called the value of the variable. Example: The letters a, b, c, x, y, z, m, p, q are most commonly used for variables. In algebra the […]

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         Rules – Addition of Integers There are two conditions when adding integers.  Rule 1: When integers have same sign. Rule 2: When integers have opposite sign. (a) When integers have same sign. (b) When integers have opposite sign. a. Integers having (same)positive sign. When we add two positive integers means both […]

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