Multiply 5/8 by 2/5..

Time can be saved here by cancellation.

b.

In shop work, problems are met frequently that

are condensed to written work looking something like this: 25 2/5 x 6 1/3,

or 47 x 16 4/5.

first reduce the mixed numbers to improper fractions by multiplying the

whole number by the denominator, and adding the numerator, as shown below.

Then multiply, as in multiplying two fractions.

EXAMPLE

Multiply 2 2/7 by 5 1/4.

2 2/7 = 16/6

5 1/4 = 21/4

Change to improper fractions and cancel.

c.

When one number is a mixed number and the other a

whole number, work as follows:

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