In 5 years, Heath will be 16 + 5 = <<16+5=21>>21 years old.
In 5 years, Jude will be 21 / 3 = <<21/3=7>>7 years old.
The difference in their ages is 21 - 7 = <<21-7=14>>14 years.
Today, Jude will be 16 - 14 = <<16-14=2>>2 years old.
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