Question

John finished colouring a picture in 7/12hrs.Ritu finished colouring the same picture in 3/4hrs. who worked longer?by what fraction was it longer?​

Answer 1

John- 7/12 hrs

Ritu- 3/4= 3/4*3/3= 9/12 hrs

therefore ritu worked longer by 9/12-7/12=2/12=1/6 hours

ritu worked longer by 1/6 hours.

Answer 2

Time taken by John to finish =

$\frac{7}{12}$

Time taken by Ritu to finish =

$\frac{3}{4}$

Therefore, we must convert it into like fractions

Common factor = 24

$\frac{7}{12} \times \frac{2}{2} = \frac{14}{24}$

$\frac{3}{4} \times \frac{6}{6} = \frac{18}{24}$

Hence, Ritu worked longer to complete the picture

Fraction by what it was longer:

$\frac{18}{24} - \frac{14}{24} = \frac{4}{24}$

=Time taken longer by Ritu to complete