A fraction is a part of a whole, and fractions are necessary when dealing with portions and amounts that are not whole numbers. Fractions are a part of mathematics and science, as well as simple household functions such as cooking and making home repairs.
Know MoreMeasurement systems exist to easily define portions and amounts of things in daily life. Miles are simple measurements of distances, pounds quantify weights and masses, and cups help to measure portions of food. However, not all portions fall neatly into whole number measurements, and fractions provide the means of measuring these amounts. For example, a precise chemical mixture might require slightly less than an entire gram of a particular substance, perhaps only one-fourth of a gram. A biker might travel more than 3 miles but less than 4 miles, or 3 1/2 miles.
Fractions themselves are specific measurements. Rather than using ambiguous terminology like a pinch or a drop, fractions allow for specific divisions of a whole. Smaller divisions, like eighths or sixteenths, are useful for very tiny amounts, while fourths, thirds and halves help with larger divisions.
Applications such as cooking typically use fractions written out. However, scientific application of fractions more often displays fractions as decimals. Decimals provide a way of displaying fractions as base 10 numbers, like notating 1 1/2 as 1.5.
Learn MoreThe arithmetic sum formula is Sn = n/2 {2a + (n-1) d} where Sn is the sum of n-terms of an arithmetic progression, the first term is ‘a’ and the common difference between any two consecutive terms is given by d.
Full Answer >Twenty pounds converts to 9.07 kilograms. The metric system represented an attempt to bring standardization and sense to the imperial system, which had been in use throughout the British Empire and elsewhere. However, problems arose from a lack of standardization.
Full Answer >There are many arithmetic practice problems to choose from that cover all different levels of math skills. For early learners in pre-kindergarten, addition problems such as 1 + 2 , 1 + 3 and 1 + 4 are great for teaching beginning math skills. Young children can benefit from addition or subtraction problems with higher numbers, but it's good to challenge them a little more by adding simple multiplication problems.
Full Answer >The standard form is 9,319,000. The individual numbers written in expanded form are 8,000,000 + 1,200,000 + 110,000 + 9,000, and the solution is obtained by adding all the digits that fall in the same place values.
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