Aptitude - Problems on H.C.F and L.C.M - Discussion
Discussion Forum : Problems on H.C.F and L.C.M - General Questions (Q.No. 24)
24.
Which of the following fraction is the largest ?
Answer: Option
Explanation:
L.C.M. of 8, 16, 40 and 80 = 80.
| 7 | = | 70 | ; | 13 | = | 65 | ; | 31 | = | 62 |
| 8 | 80 | 16 | 80 | 40 | 80 |
| Since, | 70 | > | 65 | > | 63 | > | 62 | , so | 7 | > | 13 | > | 63 | > | 31 |
| 80 | 80 | 80 | 80 | 8 | 16 | 80 | 40 |
| So, | 7 | is the largest. |
| 8 |
Discussion:
49 comments Page 2 of 5.
Naveen said:
8 years ago
You are correct @Sarah.
Angilina jolie said:
8 years ago
Thank you so much @Sarah.
Sarah said:
8 years ago
LCM of 8, 16, 40 and 80 is 80 then,
80/8 = 10.
80/16 = 5.
80/40 = 2.
80/80 = 1 then,
7/8 * 10/10 = 70/80.
13/16 * 5/5 = 65/80.
31/40 * 2/2 = 62/80.
63/80 * 1 = 63/80.
70/80 > 65/80 >63/80 > 62/80.
So 7/8 is largest.
80/8 = 10.
80/16 = 5.
80/40 = 2.
80/80 = 1 then,
7/8 * 10/10 = 70/80.
13/16 * 5/5 = 65/80.
31/40 * 2/2 = 62/80.
63/80 * 1 = 63/80.
70/80 > 65/80 >63/80 > 62/80.
So 7/8 is largest.
(1)
Kanhaiya said:
9 years ago
How we get it?
Tasik said:
9 years ago
@Manju.
It's not 60/9.
It's 63/9 = 7 (It also get 7).
Then which is largest?
It's not 60/9.
It's 63/9 = 7 (It also get 7).
Then which is largest?
Pritam said:
9 years ago
How the LCM will be 80?
Manik sharma said:
9 years ago
I don't understand how 7/8 = 70/80?
Arts ashokan said:
9 years ago
(7/8)*10 = 70/80;
(13/16)*5 = 65/80;
(31/40)*2 = 62/80;
(13/16)*5 = 65/80;
(31/40)*2 = 62/80;
Sikha said:
9 years ago
I don't understand how we are getting 7/8 = 70/80.
13/16=65/80.
31/40=62/80.
Please somebody explain me dis?
13/16=65/80.
31/40=62/80.
Please somebody explain me dis?
Asif said:
9 years ago
I think @Vijaya is right, because it is easiest to check the correct answer that which fraction is larger or smaller.
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