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answer this quastion using UPSC, undestan, plan,solve,check , 7 1/8 + 6 3/4​

Sagot :

Answer:

### Plan

1. Convert each mixed number to an improper fraction.

2. Find a common denominator.

3. Add the fractions.

4. Convert the result back to a mixed number if necessary.

### Solve

1. Convert to improper fractions:

[tex] - \(7 \frac{1}{8}\):[/tex]

[tex]7 \frac{1}{8} = \frac{7 \times 8 + 1}{8} = \frac{56 + 1}{8} = \frac{57}{8}[/tex]

[tex]- \(6 \frac{3}{4}\):[/tex]

[tex]6 \frac{3}{4} = \frac{6 \times 4 + 3}{4} = \frac{24 + 3}{4} = \frac{27}{4}[/tex]

2. Find a common denominator:

- The denominators are 8 and 4. The least common multiple of 8 and 4 is 8.

- Convert \frac{27}{4}) to a fraction with a denominator of 8:

[tex]\frac{27}{4} = \frac{27 \times 2}{4 \times 2} = \frac{54}{8}[/tex]

3. Add the fractions:

[tex] \frac{57}{8} + \frac{54}{8} = \frac{57 + 54}{8} = \frac{111}{8}[/tex]

4. Convert the result back to a mixed number:

[tex]{\frac{111}{8} = 13 \frac{7}{8} \quad \text{(since 111 divided by 8 is 13 with a remainder of 7)}}[/tex]

Check

Double-check the result to ensure accuracy:

1. Converting back to mixed numbers:

[tex] 7 \frac{1}{8} = \frac{57}{8}[/tex]

[tex]6 \frac{3}{4} = \frac{27}{4} = \frac{54}{8}[/tex]

2. Adding:

[tex]\frac{57}{8} + \frac{54}{8} = \frac{111}{8} = 13 \frac{7}{8}[/tex]