Simplifying fractions
Finding the lowest common denominator
there are None!
Many things. Reciprocals, switching spots numerator and denominator. So then it would be 100 over 1. So that is one. Another is if you are changing the fraction to a decimal, you will use 100. If you are simplifying fractions, a denominator of 100 is a good start. A real life problem. Cents out of a dollar.
Of course! Without decimals, you couldn't calculate percentages or fractions. Decimals allow you to break a number up. A decimal is basically a fraction, and when you calculate fraction adding, subtraction, multiplication, and division, sometimes it is easier to calculate a fraction by first changing it to a decimal instead.
First, change it so that the two fractions have the same denominator (by changing the fractions into equivalent fractions). Once the two fractions have the same denominator, it is simply a case of subtracting the numerators, leaving the denominator the same. Finally, reduce the fraction to its lowest terms (if possible).
Energy conversions is the process of energy changing form within a single object. For example, when you release a pendulum, the potential energy it had while being drawn upwards is changed into kinetic energy or the energy of movement. The total amount of energy is kept the same, but is simply changing the amount of energy each type had.
0.08 is smaller - changing to proper fractions and using the same denominator for both fractions, it is equal to 8/1000, while 0.583 is equal to 583/1000.
It is not clear why you would wish to add them! Changing them to fractions is generally the better option because it averts rounding errors.
by changing the decimal to a percentage
Currency conversions are constantly changing. As of August 4, 2012: 1 US Dollar = 0.95 Australian Dollars
Mechanical energy is the sum of potential and kinetic energy in an object due to its motion or position. Energy conversions involve changing the form of energy from one type to another, such as transforming mechanical energy into electrical energy. Essentially, mechanical energy is an aspect of energy, while energy conversions involve transformation of energy between different forms.
It means that you are not changing the value of the fraction, but you may be simplifying it. For example: 14/36 Divide top and bottom by 2 to get 7/18.