Solve Mixed Number Addition: 6⅜ + 2¾ Step-by-Step

Question

638+234= 6\frac{3}{8}+2\frac{3}{4}=

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Convert each mixed number to an improper fraction.
  • Step 2: Find a common denominator for the fractions.
  • Step 3: Add the fractions and simplify the result.
  • Step 4: Convert the result back to a mixed number if necessary.

Now, let's work through each step:

Step 1: Convert mixed numbers to improper fractions.

The first mixed number is 6386\frac{3}{8}. To convert this:

  • The whole number part is 6, and the fractional part is 38\frac{3}{8}.
  • Multiply the whole number by the denominator: 6×8=486 \times 8 = 48.
  • Add the numerator: 48+3=5148 + 3 = 51.
  • The improper fraction is 518\frac{51}{8}.

The second mixed number is 2342\frac{3}{4}. To convert this:

  • The whole number part is 2, and the fractional part is 34\frac{3}{4}.
  • Multiply the whole number by the denominator: 2×4=82 \times 4 = 8.
  • Add the numerator: 8+3=118 + 3 = 11.
  • The improper fraction is 114\frac{11}{4}.

Step 2: Find a common denominator for 518\frac{51}{8} and 114\frac{11}{4}.

The denominators are 8 and 4. The least common denominator is 8.

Step 3: Add the fractions.

Convert 114\frac{11}{4} to the equivalent fraction with a denominator of 8:

  • Multiply both the numerator and the denominator by 2: 11×24×2=228\frac{11 \times 2}{4 \times 2} = \frac{22}{8}.

Now add: 518+228=51+228=738\frac{51}{8} + \frac{22}{8} = \frac{51 + 22}{8} = \frac{73}{8}.

Step 4: Convert 738\frac{73}{8} back to a mixed number.

  • Divide 73 by 8: 73÷8=973 \div 8 = 9 remainder 1.
  • The quotient is 9, and the remainder is 1.
  • The mixed number is 9189\frac{1}{8}.

Therefore, the solution to the problem is 9189\frac{1}{8}.

Answer

918 9\frac{1}{8}