What is 3/8 plus 1/3?

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Master the Certify Teacher EC-6 (391) Mathematics Test. Use flashcards and multiple choice questions with explanations. Boost your confidence and excel in your exam!

Multiple Choice

What is 3/8 plus 1/3?

Explanation:
Adding fractions with different denominators requires a common denominator. The least common multiple of 8 and 3 is 24, so convert each fraction to have denominator 24: 3/8 becomes 9/24 (multiply top and bottom by 3) and 1/3 becomes 8/24 (multiply top and bottom by 8). Add the numerators: 9/24 + 8/24 = 17/24. This fraction is already in simplest form, since 17 and 24 have no common factors other than 1. So the sum is 17/24.

Adding fractions with different denominators requires a common denominator. The least common multiple of 8 and 3 is 24, so convert each fraction to have denominator 24: 3/8 becomes 9/24 (multiply top and bottom by 3) and 1/3 becomes 8/24 (multiply top and bottom by 8). Add the numerators: 9/24 + 8/24 = 17/24. This fraction is already in simplest form, since 17 and 24 have no common factors other than 1. So the sum is 17/24.

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