estimate the sum or difference. use the benchmarks 0,1/2, and 1
4/5 + 3/20
It’s one but I need answers for the whole test :(
that does not help
To estimate the sum or difference of the fractions 4/5 and 3/20 using benchmarks, we can compare them to the benchmarks 0, 1/2, and 1.
Start by considering the benchmark 0. Since both fractions are positive and greater than 0, we can determine that the sum will be greater than 0.
Next, compare the fractions to the benchmark 1/2. The fraction 4/5 is greater than 1/2, while 3/20 is less than 1/2. This tells us that the sum of the fractions will be greater than 1/2.
Now, consider the benchmark 1. Both 4/5 and 3/20 are less than 1, so the sum of the fractions will also be less than 1.
Based on our estimations using the benchmarks, we can conclude that the sum of 4/5 and 3/20 will be greater than 1/2 but less than 1.