contract C {
	uint constant a = 4 ether / 3 hours;
	ufixed constant b = ufixed(4 ether / 3 hours);
}
// ----
// TypeError: (32-49): Type "rational_const 10000000000000000 / 27" is not implicitly convertible to expected type "uint256". Try converting to type "ufixed256x62" or use an explicit conversion.