Question

Vassil rounded to the nearest half to estimate the product of 5/8 and 8/9 how do the estimated and actual products compare

Answer 1

The actual product is about StartFraction 1 over 18 EndFraction greater than the estimate

Explanation:

Estimate 5/8 = 1/2

8/9 = 1

product 1/2 * 1 = 1/2

Actual 5/8 * 8/9 = 5/9

5/9 - 1/2

get a common denominator, 18

5/9*2/2 - 1/2 *9/9

10/18 - 9/18 = 1/18

Answer 2

The actual product is 1/18 bigger

Explanation:

Estimate 5/8 = 1/2

8/9 = 1

product 1/2 * 1 = 1/2

Actual 5/8 * 8/9 = 5/9

5/9 - 1/2

get a common denominator, 18

5/9*2/2 - 1/2 *9/9

10/18 - 9/18 = 1/18

The actual product is 1/18 bigger