Question

Use benchmarks to estimate the sum 3/8 + 1 4/5

Answer 1

To estimate the sum 3/8 + 1 4/5 using benchmarks, find benchmarks close to the fractions and add them. The estimate for the sum is 2 1/4.

Step-by-step explanation:

To estimate the sum 3/8 + 1 4/5 using benchmarks, we need to find benchmarks that are close to these fractions. Let's look for benchmarks for 3/8 and 1 4/5:

1. For 3/8, we can estimate it to the nearest benchmark of 1/4 (which is 2/8).
2. For 1 4/5, we can estimate it to the nearest benchmark of 2 (which is 2 0/5).

Now, we can add the benchmarks: 1/4 + 2 0/5

= 1/4 + 2

= 2 1/4.

Therefore, the estimate for the sum 3/8 + 1 4/5 is 2 1/4.