Adding Fractions: Solve 1/4 + 7/8 Step by Step

Question

14+78= \frac{1}{4}+\frac{7}{8}=

Video Solution

Solution Steps

00:00 Solution
00:03 We want to find the least common denominator
00:06 Multiply by 2 to find the common denominator
00:09 Remember to multiply both numerator and denominator
00:17 Calculate the products
00:22 Add under the common denominator
00:28 Calculate the numerator
00:31 And this is the solution to the question

Step-by-Step Solution

To find the sum 14+78 \frac{1}{4} + \frac{7}{8} , follow these steps:

  • Step 1: Identify the least common denominator (LCD) of the fractions. The denominators 4 and 8 have an LCD of 8.
  • Step 2: Convert 14 \frac{1}{4} to an equivalent fraction with a denominator of 8. Multiply both the numerator and the denominator by 2: 14=1×24×2=28 \frac{1}{4} = \frac{1 \times 2}{4 \times 2} = \frac{2}{8} .
  • Step 3: The second fraction, 78 \frac{7}{8} , already has the correct denominator. Therefore, it remains 78 \frac{7}{8} .
  • Step 4: Add the numerators of the two fractions: 28+78=2+78=98 \frac{2}{8} + \frac{7}{8} = \frac{2+7}{8} = \frac{9}{8} .

Therefore, the sum of 14 \frac{1}{4} and 78 \frac{7}{8} is 98 \frac{9}{8} .

Answer

98 \frac{9}{8}