#3/8+1/2=?# Add the fractions

2 Answers
Mar 22, 2018

#7/8#

Explanation:

#3/8 +1/2#

Find a common denominator.

#= (3+4)/8" "larr 1/2=4/8#

#=7/8#

Mar 22, 2018

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

Explanation:

When adding or subtracting fractions, remember that you first need to find a common denominator. This can be found by finding the LCM (Least Common Multiple) or just by multiplying the denominators together.

For this example, we'll use the LCM of 8, because 8 = 8 and 2*4 = 8

Because 3/8 already has the denominator of 8, we dont need to change it.

To change 1/2 so it has a denominator of 8, multiply BOTH the numerator and the denominator so that the denominator = 8.

#1/2 * 4/4 = 4/8#

Notice that 4/4 is equal to one, which means were not actually changing what the fraction is equal to.

Now we can add across the numerator, keep the denominator the same for your answer.

#3/8 + 4/8 = 7/8#