Update helper.py

Author: akshat62

deepdiff/helper.py

@@ -434,6 +434,11 @@ def number_to_string(number: Any, significant_digits: int, number_format_notatio
                 # For example '999.99999999' will become '1000.000000' after quantize
                 ctx.prec += 1
                 number = number.quantize(Decimal('0.' + '0' * significant_digits))
+    elif isinstance(number, Fraction):
+        # Convert Fraction to float so that string formatting works on Python < 3.12
+        number = round(float(number), significant_digits)
+        if significant_digits == 0:
+            number = int(number)
     elif isinstance(number, only_complex_number):  # type: ignore
         # Case for complex numbers.
         number = number.__class__(