The rational numbers let's work.

We need to remember,

what to add and subtract

numbers involving fractions,

when their denominators

they're not the same

we need to calculate

your mmc and then

a common denominator find,

to later operate

their numerators,

and whenever possible

your result simplify

and this way

The solution find.

We need to remember,

what to add and subtract

numbers involving fractions,

when their denominators

are equal

It is very simple;

we just have the numerators to operate,

where the denominator

stays the same and,

never forgetting,

that whenever possible,

the result simplify.

We need to remember,

that for the product,

between two fractions find

for the sake of facilitating

first let's try

simplify common numbers,

that between the numerator and the denominator,

we can find,

to multiply in this way,

the numerator by the numerator,

and the denominator by the denominator

and this way

The solution find.

We need to remember,

that for the division,

between two fractions

accomplish,

the idea is to multiply,

the first fraction

the reverse of the second,

not forgetting

that in multiplication

we can simplify

and thus facilitate

the way how

to the result arrive.

We need to remember,

that for potentiation

of fractions calculate,

we need to raise

this fraction,

at a given power,

raising so,

the numerator and the denominator,

to that power.

Never forgetting

that all exponent power one

equals base and,

that the power of zero exponent

equals one,

thus facilitating,

in this way

The solution find.

We need to remember

that for the rooting of fractions

meet

we need it this way

remember

the definition of square root

already studied in natural numbers,

and so extract

the square root of the numerator

and the denominator

stop this way

The solution find.

We need to remember

that for fractional numbers

to compare,

when two fractions

has the same denominator;

bigger is the one that has

the largest numerator and,

that when two fractions

have different denominators,

we owe the mmc find

to relate and,

in this way

The solution find.

*Ely Palavé*