Question

Sunayana got 15 out of 20 full marks abd Bishwant got 35 out of 50 full marks. Express their marks as the fractions of the full marks and identify who has better performance.

No Spam, Please!

Explanation Needed!

Answer 1

Information given

Sunayana got 15 out of 20

Fraction is 15 / 20

Bishwant got 35 out of 50

Fraction is 35 / 50

Now who is better ?

15 / 20 and 35 / 50   ????????????

Take L.C.M of 20 and 50 :

20 = 2 × 10

50 = 5 × 10

L.C.M = 2 × 5 × 10

          = 10 × 10

          = 100

15 / 20 can be written as  : 15 × 5 / 20 × 5

                                         = 75 / 100

35 / 50 can be written as : 35 × 2 / 20 × 2

                                          = 70 / 100

Now we can say that : 75 / 100 > 70 / 100

Hence : 15 / 20 > 35 / 50

ANSWER :

Sunayana showed better performance

Hope it helps :-)

________________________________________________________________