Question

tom had a very challenging fraction multiplycation problem to do, but his sister said it was really easy to do mentally. can you find the answer mentally? Explain how

Answer 1

Answer:

76/81×80

76=80/81

Step-by-step explanation:

Answer 2

Answer:

80/81

Step-by-step explanation:

$\dfrac{76}{81} \times \dfrac {80}{76}=\dfrac{76\times 80}{81\times76}$

Cross cancel the common factor of 76:

$\dfrac{76\times 80}{81\times76}=\dfrac{80}{81}$