26.5k views
20 votes
Work out, in its simplest form
1/2 + 3/8

2 Answers

7 votes

Answer:

7 / 8

Explanation:

In order to add fractions, the denominators must be the same.

1 / 2 + 3 / 8

Find the least common denominator by prime factorization.

2:2

8:2, 2, 2

To determine the least common denominator (LCD), multiply the common factor 2 times the other factors in blue.

LCD = 2 × 2 × 2 = 8

Multiply 1 / 2 times 4 / 4 so that it will have a denominator of 8.

1 / 2 × 4 / 4 + 3 / 8

= 4 / 8 + 3 / 8

= 7 / 8

Hope this helps :)

User Breno Perucchi
by
5.2k points
7 votes

1/2 + 3/8 = 4+3/8 = 7/8

User DJElbow
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5.1k points