Equivalent fractions can be found by either dividing or multiplying both the numerator and denominator by the same nonzero number. For example, when the top, or numerator, and bottom, or denominator, of the fraction 2/4 is divided by 2, the result is the equivalent fraction 1/2. When the top and bottom of 2/4 is multiplied by 2, the equivalent fraction is 4/8.
Equivalent fractions are fractions that represent the same value, although the numbers in the fraction are different. When a fraction can no longer be divided by a whole number, the fraction has been reduced to its simplest form, or simplified. For example, 1/2 can no longer be divided by a whole number. Other equivalent fractions of 2/4 are 6/12, 8/16 and 10/20. Equivalent fractions can only be found by multiplying or dividing, not by adding or subtracting.
Other types of fractions include proper, improper, reciprocal and mixed number. Proper fractions are fractions when the numerator is a smaller number than the denominator. Examples of proper fractions include 1/2, 4/5 and 5/25. Improper fractions are fractions that have a smaller denominator than numerator. Examples of these include 9/1, 8/3 and 6/4. Fractions that have an equal numerator and denominator, such as 10/10, are also improper fractions. Reciprocal fractions are fractions that when multiplied, equal 1. For example, 4/3 and 3/4 are reciprocals because 3/4*4/3 is equal to 12/12, or 1. Mixed numbers are comprised of a whole number, such as 6, and a proper fraction, such as 1/5, which together are written as 6 1/5.
Learn MoreOf all the engineering disciplines, geometry is mostly used in civil engineering through surveying activities, explains TryEngineering.org. Geometry involves the analysis and study of relationships among shapes, and civil engineers design and assemble shapes to construct buildings, bridges, highway systems, tunnels, dams and other structures.
Full Answer >One reads a ruler by using the hash marks on the ruler to read off each large number, which denote inches. After one reads the inch on the ruler, then one reads the smaller linear marks next to that inch, which indicate the fractions of an inch.
Full Answer >Triangles have been used extensively throughout history in construction due to their rigid shape and strength. Unlike a square, that can shift into a parallelogram when force is applied to one of its sides, an equilateral triangle's sides and angles are fixed.
Full Answer >The number of symmetry lines for a star depends on the particular types of star. A five-pointed star has five lines of symmetry. However, a six-pointed star has six lines of symmetry.
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