Author: Saim Khalid

Definition Fractions that have exact same denominators are called like fractions. Fractions such as 15 and 45 are like fractions because they have a common denominator 5. In other words, fractions with like denominators are categorized as like fractions. Performing any mathematical operations on like fractions is comparatively easier as we can make use of the common denominator for fraction operations…

This tutorial provides comprehensive coverage of adding and subtracting of fractions based on Common Core (CCSS) and State Standards and its prerequisites. Students can navigate learning paths based on their level of readiness. Institutional users may customize the scope and sequence to meet curricular needs. This simple tutorial uses appropriate examples to help you understand…

Introduction In this lesson, we solve word problems involving the volume of a triangular prism. Real world problems. Example 1 A right prism base is a triangle whose sides are 18 cm, 20 cm and 34 cm. Find the volume of the prism if its height is 9 cm. Solution Step 1: Area of baseA…

Introduction In this lesson we find the volume of a triangular prism A triangular prism is a prism that has two congruent parallel triangles as its bases and rectangular lateral faces. Formula for the volume of a triangular prism If A is the area of the base triangle and h is the height of the…

Introduction In this lesson we solve word problems involving the rate of filling or emptying a rectangular prism. Formula to find time to drain or fill up a rectangular prism at a certain rate. If the rate of filling up or draining a rectangular prism is r units per minute and if the volume of…

Introduction In this lesson we solve word problems involving the volume of a rectangular prism. Example 1 Sarah has a chocolate box whose length is 12 cm, height 9 cm, and width 6 cm. Find the volume of the box. Solution Step 1: The given box has length = 12 cm; width = 6 cm;…

Introduction In this lesson, we find the volume of rectangular prisms with fractional edge lengths. Formula for the volume of solid made of cubes with unit fractional edge lengths l = number of cubes with unit fractional edge length along the length w = number of cubes with unit fractional edge length along the width…

Introduction Here we find volume of solids made of cubes with unit fraction edge lengths. Consider for example a solid of dimensions 3 in × 3 in × 3 made of small cubes with 12 inch edge lengths. In that case the solid is made up of 6 × 6 × 6 small cubes of 12 inch edge lengths.…

Introduction A unit cube has a length of 1 unit, width of 1 unit and height of 1 unit. Its volume is 1 cubic unit. Any solid shape can be shown as being of made of unit cubes. Counting the number of unit cubes in that solid shape gives its volume. The cube shaded green is a…

Definitions Prism A prism is a solid bounded by a number of plane faces; its two faces, called the ends or bases, are congruent parallel plane polygons and other faces, called the side faces (or lateral faces), and are rectangles. Rectangular Prism In a rectangular prism the bases or ends are rectangular faces and the…