Which arrows in this figure indicates infrared energy, which has been converted from ultraviolet energy? 
Definitions:
Subtract
To take away a number or amount from another, leaving a difference.
Least Common Denominator
The smallest common multiple of the denominators of two or more fractions, used in addition and subtraction of fractions.
Denominator
The bottom number in a fraction, indicating the total number of equal parts the whole is divided into.
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