Question

MICHAEL FINISHED COLOURING A PICTURE IN 7/10 HOURS. VAIBHAV FINISHED COLOURING THE SAME PICTURE IN 3/4 HOUR. WHO WORKED LONGER? BY WHAT FRACTION IT WAS LONGER? PLEASE TELL ME AND I WILL MARK YOU AS A BRAINLIEST ANSWER​

Answer 1

To find out who worked for longer, convert both fractions into like fractions.

$\frac{7 \times 4}{10 \times 4} \: and \: \frac{3 \times 10}{4 \times 10}$

Their LCM is 40, so multiply accordingly

$\frac{28}{40} \: and \: \frac{30}{40}$

We can clearly see that,

$\frac{28}{40} < \frac{30}{40}$

Therefore we can say that Vaibhav took long to complete the picture

$\frac{30}{40} - \frac{28}{40}$

$= \frac{2}{40}$

$= \frac{1}{20}$

So vaibhav finished the work (1/20) hours before Michael

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