Solve Mixed Number Addition: 6⁴/₆ + 2¹/₅

Question

646+215= 6\frac{4}{6}+2\frac{1}{5}=

Video Solution

Step-by-Step Solution

To solve 646+2156\frac{4}{6} + 2\frac{1}{5}, follow these steps:

  • Step 1: Convert the mixed numbers to improper fractions.

646=6×6+46=4066\frac{4}{6} = \frac{6 \times 6 + 4}{6} = \frac{40}{6} and 215=2×5+15=1152\frac{1}{5} = \frac{2 \times 5 + 1}{5} = \frac{11}{5}.

  • Step 2: Find a common denominator for the fractions 406\frac{40}{6} and 115\frac{11}{5}.

The least common denominator of 6 and 5 is 30.

Convert 406\frac{40}{6} to have the denominator 30: 40×56×5=20030 \frac{40 \times 5}{6 \times 5} = \frac{200}{30} .

Convert 115\frac{11}{5} to have the denominator 30: 11×65×6=6630 \frac{11 \times 6}{5 \times 6} = \frac{66}{30} .

  • Step 3: Add the fractions with the common denominator.

20030+6630=200+6630=26630\frac{200}{30} + \frac{66}{30} = \frac{200 + 66}{30} = \frac{266}{30}.

  • Step 4: Convert the improper fraction 26630\frac{266}{30} back to a mixed number.

Divide 266 by 30, quotient is 8 and remainder is 26: 26630=82630\frac{266}{30} = 8\frac{26}{30}.

Therefore, the solution to the problem is 826308\frac{26}{30}.

Answer

82630 8\frac{26}{30}