15.

42.

3M + 4K = ?

There are two ways to solve this problem.

A.

Change both metric numbers to a common metric term, such as 3000K

+ 4K.

B.

Change both metric numbers to their base equivalents, 3,000,000 +

4,000.

Since you already know how to do B, in this text we will use ________.

66.

Two

fractions

are

equivalent

if

both

can

be

reduced

to

the

same

fraction.

For example, 1/3 = 15/45 because 15/45 can be reduced to 1/3 by

dividing both numerator and denominator by 15.

Is it true that 4/10 = 12/30?