Multiply 31 by 15 and you have your answer (465).
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Find a common denominator by finding the LCM of the dissimilar denominators and converting the fractions to equivalent fractions with the same denominator. Then add the numerators and put that sum over the common denominator. Reduce if possible. Example: 1/5 + 1/6 The least common denominator of 5 and 6 is 30. 1/5 = 6/30 1/6 = 5/30 1/5 + 1/6 = 11/30
29 and 30.
1 + 2 + 3 + 5 + 6 + 10 + 15 + 30 = 62.
1+1+1
Let the numbers be 3x and x:- 3x+x = 30 4x = 30 Diivide both sides by 4 x = 7.5 So the numbers are 22.5 and 7.5