\(2 \frac{1}{2}\) is an example of a mixed number. This is when whole numbers and fractions are written together. Turn \(3 \frac{1}{2}\) into an improper fraction. The fraction in the mixed number has ...

Rationalising an expression means getting rid of any surds from the bottom (denominator) of fractions. Usually when you are asked to simplify an expression it means you should also rationalise it.

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Ejection fraction (EF) measures how well the heart pumps blood. A normal ejection fraction is between 55% to 70%. A low ejection fraction can be a sign of heart failure. Ejection fraction (EF) ...

The incidence and prevalence of heart failure with preserved ejection fraction (HFpEF) is increasing, along with the aging population and the ongoing rise in risk factors such as hypertension, ...

Heart failure with preserved ejection fraction (HFpEF) happens when the heart pumps normally, but it is stiff and can't relax properly. Common symptoms of HFpEF include shortness of breath, fatigue, ...

Before solving percentage questions for competitive exam candidates first checkout the percentage formulas given below Change in quantity: There are two types of changes occur when any number is ...