Correct option is C
Concept Used:
To determine the greatest or smallest fraction, we can either equalize the denominators or convert the fractions into percentages.
Solution:
21,53,72,65Then LCM of (2, 5, 7, 6)=210(21,53,72,65)×210=(105,126,60,175)
According to above smallest fraction = 2/7
Alternate Method:
21=50% 53=60% 72≈28.57% 65≈83.33%
2/7 is the smallest fraction.