4/8+3/8=7/8, 1-7/8=1/8
A whole number combined with a proper fraction
Peugeot
What fraction of a second is 1 picosecond?
Multiply the first fraction by the reciprocal of the second. That is, flip the second fraction over and then multiply the two.
It could be as little as just over zero (from a fraction of a second before noon to a fraction of a second after) to as much as 12 hours (from a fraction of a second after midnight to a fraction of a second after noon).
The first figure to the right of the decimal point represents the number of tenths. If there were a second figure this would show the number of hundredths. As a mixed number 6.2 is 6 2/10 (Six and two tenths) As an improper fraction this is 62/10, or the equivalent fraction 31/5.
"Dividing Fractions is easy as pie, flip the second and multiply." Flip the second fraction, and multiply, and reduce.
write the unit as a fraction 25 feet per second
A second is divided into milliseconds and there are 1000 milliseconds in a second.
Because division by a number (the second fraction) is the same as multiplication by its reciprocal.
To divide a fraction by a fraction, multiply the first fraction by the reciprocal of the second one.
When dividing by a fraction, the second fraction (the divisor) is changed into its reciprocal by swapping the numerator and denominator over (turning it upside down) and then it is multiplied by the first number (fraction).