Rationalize the denominator of the fraction and simplify. 
Definitions:
Recommended Intensity
The advised level of effort or exertion in physical activity, often expressed as a percentage of maximum heart rate or capacity.
Health-Related Fitness
Components of physical fitness that contribute to the proper functioning of the body's systems and improve health, including cardiovascular fitness, muscle strength, endurance, flexibility, and body composition.
Physically Active
Engaging in bodily movements that expend energy, including exercises, sports, and daily physical tasks.
Body Composition
The proportion of fat, bone, water, and muscle in human bodies, often used in fitness and health assessments to determine the ratio of fat to lean mass.
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