Eric has 6 1/6 feet tall and his brother is 5 3/4 feet tall. eric is how many feet taller than his brother?

6 1/6- 5 3/4=x

1) convert the fractions to a common multiple like 12, but what the denominator is multiplied by so is the numerator

6 2/12- 5 9/12

2) subtract the 6 and 5 than subtract numerators

5/12 is the answer

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490