When you've multiplied the ones digit by every digit in the top number, move to the tens digit in the bottom number. Long multiplication means you're doing multiplication by hand. The traditional method, or Standard Algorithm, involves multiplying numbers and lining up results according to place value. These are the steps to do long multiplication by hand: Converting from decimals to fractions is straightforward. It does, however, require the understanding that each decimal place to the right of the decimal point represents a power of 10; the first decimal place being 10 1, the second 10 2, the third 10 3, and so on. Simply determine what power of 10 the decimal extends to, use that power of 10 as the denominator, enter each number to the right of the decimal point as the numerator, and simplify. For example, looking at the number 0.1234, the number 4 is in the fourth decimal place, which constitutes 10 4, or 10,000. This would make the fraction 1234

Similarly, fractions with denominators that are powers of 10 (or can be converted to powers of 10) can be translated to decimal form using the same principles. Take the fraction 1

Some manufacturers put the speed rating at the end of the size and do not indicate if the tire is tubeless or not. In that case the size would look like this 120/70-17Z. 120 Unlike adding and subtracting integers such as 2 and 8, fractions require a common denominator to undergo these operations. One method for finding a common denominator involves multiplying the numerators and denominators of all of the fractions involved by the product of the denominators of each fraction. Multiplying all of the denominators ensures that the new denominator is certain to be a multiple of each individual denominator. The numerators also need to be multiplied by the appropriate factors to preserve the value of the fraction as a whole. This is arguably the simplest way to ensure that the fractions have a common denominator. However, in most cases, the solutions to these equations will not appear in simplified form (the provided calculator computes the simplification automatically). Below is an example using this method. a

Insert a decimal point in the product so it has the same number of decimal places equal to the total from step 1. The Speed Rating is explained in detail here. For our example a speed rating of Z means this tire is rated for speeds exceeding 149mph. In engineering, fractions are widely used to describe the size of components such as pipes and bolts. The most common fractional and decimal equivalents are listed below. 64 th

Math

The Ply Rating is a descriptive abbreviation. It refers to the number of plys (layers) that make up the tire. For more on descriptive abbreviations, see sections below. For specific strength of the different ply tires, refer the tire manufacturers literature. Use long addition to add your number columns from right to left, carrying as you normally do for long addition. The speed rating is explained in detail below, but in our example, a speed rating of H means this tire is rated for speeds not to exceed 130mph or 210kph. multiplied by 100 to give you a whole number for the tire. So instead of .9 the tire is stamped 90.