(54)

(55)

less

2/5 - 1/3 = ****

To subtract fractions whose denominators do

not have a common dividend, you must multiply

the denominators and the product is your

l.c.d. In the above problem, 15 is the l.c.d.

(5 x 3 = 15).

4/7 - 3/4 = ****

The l.c.d. is ______________.

(55)

(56)

28

2/5 - 1/3 = ****

2/5 - 1/3 can be expressed in EQUIVALENT

FRACTIONS BY __________ - __________.

(56)

(57)

6/15 - 5/15

To practice:

2/5 x 3/3 - 1/3 x 5/5 =

6/15 - 5/15 =

6/15 - 5/15

(57)

(58)

1/15

5/7 - 1/3 =

We

subtract

the

numerator after

the

subtraction sign

and

carry

over

the

l.c.d.

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