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→Method 4: Hexadecimal to Binary / Binary to Hexadecimal
# '''One hexadecimal number''' represents '''4 binary numbers''', so starting from right-side, group binary digits into '''groups of 4''' (add leading zeros if necessary).
# Write '''(8)(4)(2)(1)''' under <u>each</u> group of 3 4 binary numbers.
# Multiply the values or "placeholders" (i.e. '''0''''s and '''1''''s) by the corresponding (8)(4)(2)(1) for each group to obtain the octal number.
# Convert values from '''10''' to '''15''' to '''A''' to '''F'''<br>(refer to diagram of ''binary to hexadecimal'' conversion)<br><br>
