| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String[] str=(br.readLine()).split(" ");
String[] str1=str[0].split("/");
String[] str2=str[1].split("/");
int a1=Integer.parseInt(str1[0]);
int b1=Integer.parseInt(str1[1]);
int a2=Integer.parseInt(str2[0]);
int b2=Integer.parseInt(str2[1]);
add(a1,b1,a2,b2);
minus(a1,b1,a2,b2);
multi(a1,b1,a2,b2);
div(a1,b1,a2,b2);
}
private static void add(int a1, int b1, int a2, int b2) {
int x=a1*b2+a2*b1;
int y=b1*b2;
printSimple(a1,b1);
System.out.print(" + ");
printSimple(a2,b2);
System.out.print(" = ");
printSimple(x,y);
System.out.print("\n");
}
private static void minus(int a1, int b1, int a2, int b2) {
int x=a1*b2-a2*b1;
int y=b1*b2;
printSimple(a1,b1);
System.out.print(" - ");
printSimple(a2,b2);
System.out.print(" = ");
printSimple(x,y);
System.out.print("\n");
}
private static void multi(int a1, int b1, int a2, int b2) {
int x=a1*a2;
int y=b1*b2;
printSimple(a1,b1);
System.out.print(" * ");
printSimple(a2,b2);
System.out.print(" = ");
printSimple(x,y);
System.out.print("\n");
}
private static void div(int a1, int b1, int a2, int b2) {
int x=a1*b2;
int y=b1*a2;
if(y<0){
x=(-1)*x;
y=(-1)*y;
}
printSimple(a1,b1);
System.out.print(" / ");
printSimple(a2,b2);
System.out.print(" = ");
if(y==0){
System.out.print("Inf");
}else{
printSimple(x,y);
}
System.out.print("\n");
}
private static void printSimple(int a, int b) {
boolean isNegative=false;
if(a<0){
isNegative=true;
a=a*(-1);
}
int gcd=getGcd(a,b);
a=a/gcd;
b=b/gcd;
int k=a/b;
int x=a%b;
int y=b;
if(isNegative){
System.out.print("(-");
if(k==0){
if(x!=0)
System.out.print(x+"/"+y);
else
System.out.print(0);
}else{
System.out.print(k);
if(x!=0)
System.out.print(" "+x+"/"+y);
}
System.out.print(")");
}else if(k==0){
if(x!=0){
System.out.print(x+"/"+y);
}else{
System.out.print(0);
}
}else{
System.out.print(k);
if(x!=0){
System.out.print(" "+x+"/"+y);
}
}
}
private static int getGcd(int x, int y) {
if(y==0)
return x;
else
return getGcd(y,x%y);
}
}
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