Question

jaidev takes 2 1/5 minutes to walk across the school ground. Rahul takes 7/4 minutes to do the same. who takes less time and by what fraction​

Answer 1

Answer:

9/20 minutes

Step-by-step explanation:

Rahul takes less time by 9/20 minutes

Answer 2

Answer:

Step-by-step explanation:

jaidev:2 1/5=11/5

rahul:7/4

to compare lets make the denominator same as its the only way to compare the fractions

to making denominator same lets take lcm of 5,4

that is 20

jaidev:11/5 *4/4=44/20

rahul:7/4*5/5=35/20

now as 35/20 is less than 44/20 rahul takes less time

difference=44/20-35/20=9/20

that is rahul takes 9/20 min less than jaidev