EXAMPLE

From 12 5/8 take 7 7/8. 7/8 cannot be subtracted from 5/8, so borrow 8/8,

or 1, from the 12; add this 8/8 to the 5/8, thus:

8.

a.

In multiplying fractions, they

need not be reduced to an LCD, as in adding and subtracting fractions. When

the numerator of a fraction is multiplied, the number of fractional units is

multiplied. Their size (represented by the denominator) remains the same.

But to multiply or increase the size of the fractional units (represented by

the denominator), the denominator must be divided, and the number of

fractional units (represented by the numerator) remains the same.

Before

multiplying, it is recommended that canceling of equal factors be carried

out.

(*Cancellation *is the process of striking out equal factors from the

numerator and denominator of a fraction. This operation does not change the

value of the fraction but aids in reducing it to its lowest terms.)

To multiply a fraction by an integer (a whole number), or an

integer by a fraction, multiply the numerator by the integer.

Reduce the

product to its lowest terms. To multiply a fraction by a fraction, multiply

the numerators together.

This gives the numerator of the product.

Next,

multiply the denominators together.

This gives the denominator of the

product. Cancel where possible.

EXAMPLE

Multiply 3/5 by 4.

This means find a fraction 4 times as great as 3/5.

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