CLASS-4
FINDING EQUIVALENT FRACTION VIA CROSS MULTIPLICATION

FINDING EQUIVALENT FRACTION VIA CROSS MULTIPLICATION -

Two fraction are equivalent if their numerators are the same when their numerators are made equal.

BY CROSS MULTIPLICATION -

1) Cross multiply each numerator only by the other fraction’s denominator.

2) If the products are equal, the fractions are equal.


Example.1) Find out, whether 4/8 & 8/16 is equivalent fraction or not?

fraction

                4                8

Thus,  -------  and  -------  are equivalent fractions   (Ans.)

            8               16



Example.2) Find out, whether 5/7 & 15/21 is equivalent fraction or not?

fraction

             5               15

Thus,  -------  and  -------  are equivalent fractions   (Ans.)

            7               21



Example.3) Find out, whether 3/7 & 5/9 is equivalent or not ?

fraction

                                                  27 ≠ 35

          3            5

Thus, ------ and ------ are not equivalent fractions    (Ans.)

          7            9