# SOLUTION: Evaluate. r + s/7 for r =51 and s = 12 r + s/7 =______. (Simplify)

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 Click here to see ALL problems on Distributive-associative-commutative-properties Question 250142: Evaluate. r + s/7 for r =51 and s = 12 r + s/7 =______. (Simplify)Answer by richwmiller(10279)   (Show Source): You can put this solution on YOUR website!we have the expression r+s/7 and we have values for r and s so we substitute the values for the variables (r and s) 51+12/7 now we have to combine the improper fraction with the whole number 51. we can do that several ways. we can convert 12/7 to a whole number plus a fraction and then add it to 51 or we can convert 51 to an improper fraction also over 7 and add the two numerators and then reduce the improper fraction 51=51*7/7 (51*7+12)/7=(357+12)/7=369/7=52 5/7 the other way would have been convert 12/7 to 1 5/7 and then add 1 5/7 to 51 to get 52 5/7