- However, their system avoided using improper fractions. For instance, instead of the improper fraction 9/4, they would use its equivalent mixed fraction, 2 1/4. Unlike Western Mathematics, the Chinese focused on practical applications rather than theoretical reasoning and geometry.
- Let's convert inches to fraction - inches to fraction calculator in practice. Imagine you've bought a wooden panel, 5 meters long. You plan to cut it into six equal parts, but you have only a tape measure with the fractional inches scale.
- The first thing you always need to do before estimating fractions is to round each fraction either to the nearest 0, 1/2, or 1. Estimate 3/7 + 5/9. Notice that 3/7 is close to 1/2 and 5/9 is also close to 1/2. Therefore, an estimate for 3/7 + 5/9 is 1/2 + 1/2 = 1. Estimate 1/12 + 3/5. Notice that 1/12 is close to 0.
Fractions: 0 to 9 over 1 to 100. Fractions: 10 to 19 over 1 to 100. Fractions: 20 to 29 over 1 to 100. Fractions: 30 to 39 over 1 to 100. Fractions: 40 to 49 over 1 to 100. Fractions: 50 to 59 over 1 to 100. Fractions: 60 to 69 over 1 to 100. Fractions: 70 to 79 over 1 to 100. Fractions: 80 to 89 over 1 to 100. Fractions: 90 to 100 over 1 to.
Source code:Lib/fractions.py
The
fractions
module provides support for rational number arithmetic.A Fraction instance can be constructed from a pair of integers, fromanother rational number, or from a string.
Umsatz 9 0 2 Fraction Equals
fractions.
Fraction
(numerator=0, denominator=1)¶Umsatz 9 0 2 Fraction Decimal
fractions.
Fraction
(other_fraction)fractions.
Fraction
(float)fractions.
Fraction
(decimal)fractions.
Fraction
(string)The first version requires that numerator and denominator are instancesof
numbers.Rational
and returns a new Fraction
instancewith value numerator/denominator
. If denominator is 0
, itraises a ZeroDivisionError
. The second version requires thatother_fraction is an instance of numbers.Rational
and returns aFraction
instance with the same value. The next two versions accepteither a float
or a decimal.Decimal
instance, and return aFraction
instance with exactly the same value. Note that due to theusual issues with binary floating-point (see Floating Point Arithmetic: Issues and Limitations), theargument to Fraction(1.1)
is not exactly equal to 11/10, and soFraction(1.1)
does not return Fraction(11,10)
as one might expect.(But see the documentation for the limit_denominator()
method below.)The last version of the constructor expects a string or unicode instance.The usual form for this instance is:where the optional
sign
may be either ‘+’ or ‘-‘ andnumerator
and denominator
(if present) are strings ofdecimal digits. In addition, any string that represents a finitevalue and is accepted by the float
constructor is alsoaccepted by the Fraction
constructor. In either form theinput string may also have leading and/or trailing whitespace.Here are some examples:The
Fraction
class inherits from the abstract base classnumbers.Rational
, and implements all of the methods andoperations from that class. Fraction
instances are hashable,and should be treated as immutable. In addition,Fraction
has the following methods:Changed in version 2.7: The
Fraction
constructor now accepts float
anddecimal.Decimal
instances.from_float
(flt)¶This class method constructs a
Fraction
representing the exactvalue of flt, which must be a float
. Beware thatFraction.from_float(0.3)
is not the same value as Fraction(3,10)
.![Umsatz 9 0 2 fraction decimal Umsatz 9 0 2 fraction decimal](https://patentimages.storage.googleapis.com/dc/b1/fd/40e984bddecb48/imgf000039_0002.png)
Note
From Python 2.7 onwards, you can also construct a
Fraction
instance directly from a float
.from_decimal
(dec)¶This class method constructs a
Fraction
representing the exactvalue of dec, which must be a decimal.Decimal
.Note
From Python 2.7 onwards, you can also construct a
Fraction
instance directly from a decimal.Decimal
instance.limit_denominator
(max_denominator=1000000)¶Finds and returns the closest
Fraction
to self
that hasdenominator at most max_denominator. This method is useful for findingrational approximations to a given floating-point number:or for recovering a rational number that’s represented as a float:
fractions.
gcd
(a, b)¶Return the greatest common divisor of the integers a and b. If eithera or b is nonzero, then the absolute value of
gcd(a,b)
is thelargest integer that divides both a and b. gcd(a,b)
has the samesign as b if b is nonzero; otherwise it takes the sign of a. gcd(0,0)
returns 0
.See also Tap forms organizer 5 3 9.
numbers
Remote desktop manager 4 6 0 enterprise. The abstract base classes making up the numeric tower.