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 5 of 5.
Sruthi said:
8 years ago
Well said @Vaibhav and @Hanumanth.
Sharath.s said:
8 years ago
Perfect explanation, thanks @Sarah.
(1)
Khagendra said:
8 years ago
Awesome shortcut, thanks @Sarah.
(2)
Vishwanath said:
7 years ago
Since there denominators are divisible by 8, simplify them into.
7/1, 13/2, 31/5, 63/10.
After solving them, it's clear that 7 is the largest.
7/1, 13/2, 31/5, 63/10.
After solving them, it's clear that 7 is the largest.
(4)
Kriti said:
7 years ago
As per my knowledge, the fraction whose denominator is the smallest is the largest fraction.
(6)
Ajkniu said:
6 years ago
As per my knowledge, the fraction whose denominator is the smallest is the largest fraction.
(4)
Saumyojit Das said:
6 years ago
Why we are taking out LCM why not HCF?
HCF will also give a common factor in the denominator.
HCF will also give a common factor in the denominator.
(1)
Sirin said:
4 years ago
Lcm is
8 16 40 80.
Factor is 2 * 2 * 2 * 5 * 2 = 80.
8 16 40 80.
Factor is 2 * 2 * 2 * 5 * 2 = 80.
Mayur said:
4 years ago
First find LCM Of denominator;
LCM of 8,16,40,80=80
Now let's same all the denominator
7*10/8*10. = 70/80.
13*5/16*5. = 65/80.
31*2/40*2 62/80.
63*1/80*1. 63/80.
As u can see all the denominators is the same,
So see numerator now 70/80 { 70 is biggest}
Which means
7/8 Is the largest fraction.
LCM of 8,16,40,80=80
Now let's same all the denominator
7*10/8*10. = 70/80.
13*5/16*5. = 65/80.
31*2/40*2 62/80.
63*1/80*1. 63/80.
As u can see all the denominators is the same,
So see numerator now 70/80 { 70 is biggest}
Which means
7/8 Is the largest fraction.
(10)
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