Real numbers consists of the sets of natural numbers (counting numbers beginning with 1), integers (all positive and negative numbers and zero), rational numbers (all numbers that can be written as a fraction using positive and/or negative integers) and
irrational numbers which can be + or...
5/8 - 9/20
Find common denominator: 40 convert fractions by multiplying numerators by same factor used to bring each denominator to 40.
25/40 - 18/40 = 7/40
To subtract fractions, they must have the same denominator. First: find the least common multiple between 8 and 16 which is 16. Next convert the fraction 5/8 to an equivalent fraction with 16 as the new denominator. We multiplied the
denominator by 2 to get 16. Now...