Consider the sum of 3/5 + 3/4 . round each fraction and estimate the sum. add the two fractions using a common denominator and then round the result. which estimate is closer to the actual answer.

Let's round to the nearest whole number.

3/5 = 0.6 = 1
3/4 = 0.75 = 1

1 + 1 = 2

Now let's find the common denominator:

The least common denominator between 5 and 4 is 20, so change both fractions to denominators of 20:

12/20 + 15/20

Add the numerators and keep the denominator:

27/20

27/20 = 1.35 = 1.5

Therefore adding the two fractions using a common denominator and then rounding gives us a closer answer.

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