chapter 14.7

1.Given the definition of the SimpleRational number class in Listing 14.5 (simplerational.cpp), complete the function named add: SimpleRational add(SimpleRational r1, SimpleRational r2) { // Details go here } that returns the rational number representing the sum of its two parameters. Recall that adding fractions is more involved than multiplying them; you must find a common denominator, adjust the fractions so they both have the same denominator, and then add just the numerators

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