Students learn that the denominator (bottom number of the fraction) represents the number of blocks, and the numerator represents the number of blocks to be colored in. (k5learning.com)
Over the long - term, low - salt diets, compared to normal diets, decreased systolic blood pressure (the top number in the blood pressure ratio) in healthy people by 1.1 millimeters of mercury (mmHg) and diastolic blood pressure (the bottom number) by 0.6 mmHg. (scientificamerican.com)
(The two groups» average diastolic pressures, the bottom number in the ratio, were the same.) (scientificamerican.com)