Q.8 Michael finished colouring a picture in 7/12 hour. Vaibhav finished colouring the same picture in 3/4 hour. Who worked longer? By what fraction was it longer?

Time taken by Michael = 7/12 hour
Time taken by Vaibhav = 3/4 hour
Multiply by 3 on both nominator and denominator There fore 3/4 hour =\(\frac{9}{12} \) hour
Therefore 9/12>7/12
Hence time taken by Vaibhav was longer .
Difference = 3/4 - 7/12 = 9/12-7/12 = 2/12=1/6 hour longer