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+//Exercise 1.3
+//Example  1.3.6
+//Adding,Subtracting and multiplying Rational Numbers
+function[]=rational(x1,x2,x3,x4)
+rational1=struct('numerator',x1,'denominator',x2);
+disp(rational1);
+rational2=struct('numerator',x3,'denominator',x4);
+disp(rational2);
+//Add
+x5=int32([x2 x4]);
+x5=lcm(x5);
+x6=x1*(x5/x2)+x3*(x5/x4);
+rational3=struct('numerator',x6,'denominator',x5);
+disp(rational3,"After addition");
+//subtract
+x6=x1*(x5/x2)-x3*(x5/x4)
+rational4=struct('numerator',x6,'denominator',x5);
+disp(rational4,"After Subtraction");
+//Multiply
+x7=x1*x3;
+x8=x2*x4;
+rational5=struct('numerator',x7,'denominator',x8);
+disp(rational5,"After multiplication");
+endfunction
+x1=43;
+x2=32;
+x3=233;
+x4=33;
+rational(x1,x2,x3,x4);
+\ No newline at end of file