Subtraction of One
Fraction from Another

Reduce
the fractions to their simplest forms, reduce the resulting fractions to their
common denominator and then subtract the smaller numerator from the larger one.
If the two numbers consist of whole numbers and simple fractions, again
subtract the smaller from the larger. If the fraction in the subtrahend is
larger than that of the minuend then borrow 1 from the whole number in the
minuend.

Examples

(1)
Subtract from .

This
is calculated as:

(2)
Subtract from .

Express
as . Then the difference in the whole numbers is and the
difference in the fractions is so that the
answer is .