Compute 3/5 + 2/5.

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Multiple Choice

Compute 3/5 + 2/5.

Explanation:
When you add fractions with the same denominator, you add the numerators and keep the denominator. Here you’re combining three fifths with two fifths, so you add the tops: 3 + 2 = 5, over the same bottom 5, giving 5/5. Since 5 out of 5 parts make one whole, 5/5 equals 1. Visually, you’re filling all five parts of the whole once. The other possibilities would correspond to only one part (1/5), more than a whole (6/5), or two wholes (2), which don’t match the idea of adding these two pieces of the same whole.

When you add fractions with the same denominator, you add the numerators and keep the denominator. Here you’re combining three fifths with two fifths, so you add the tops: 3 + 2 = 5, over the same bottom 5, giving 5/5. Since 5 out of 5 parts make one whole, 5/5 equals 1. Visually, you’re filling all five parts of the whole once.

The other possibilities would correspond to only one part (1/5), more than a whole (6/5), or two wholes (2), which don’t match the idea of adding these two pieces of the same whole.

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