They are elements of of a set which may consist of integers, real or complex numbers, polynomial expressions, matrices.
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To compare fractions which are not similar, the fractions must be made similar by putting them over a common denominator. There are two similar ways of doing this:Find the lowest common multiple of the denominators. Multiply the first numerator by whatever number you multiply the first denominator by to get that multiple, and do the same with the second numerator and denominator. You can then compare the numerators.Multiply the first numerator by the second denominator, and the second numerator by the first denominator, and put both numerators over the product of the two denominators. You can then compare the numerators.
A fraction has a numerator and a denominator.
a number with only a numerator over a larger denominator.
Multiply the numerator and the denominator by the same integer.
Multiply the numerator and the denominator by the same integer.