Benchmark Fractions Estimate Sum for 1/5 and 6/7 using nearest 1/4
Crop Image
Enter 2 fractions below:
Estimate the sum to the nearest 1/4
1
5
+
6
7
Estimate 1/5 with 1/4 as a benchmark:
Display the fraction bar for 1/5
The range is [0, 1/4] The halfway point is denoted below:
1
2
*
(0 + 1)
4
1
2
*
1
4
1
8
Therefore, our range is 0 < 1/8 < 1/4
Compare our fraction to the mid point
1/5 ≥ 1/8, we round up to 1/4
Estimate 6/7 with 1/4 as a benchmark:
Display the fraction bar for 6/7
The range is [3/4, 1] The halfway point is denoted below:
1
2
*
(3 + 4)
4
1
2
*
7
4
7
8
Therefore, our range is 3/4 < 7/8 < 1
Compare our fraction to the mid point
6/7 < 7/8, we round down to 3/4
Estimating, we have 1/4 + 3/4
Our estimated answer is 1
Display the fraction bar for 1/1
1
You have 2 free calculationss remaining
1
What is the Answer?
1
How does the Benchmark Fractions Calculator work?
Free Benchmark Fractions Calculator - Adds or Subtracts or Compares 2 fractions using estimating sums or estimating differences with benchmark fractions. This calculator has 2 inputs.
What 2 formulas are used for the Benchmark Fractions Calculator?