13 4/5 + 4 4/5

⚠ 13 4/5 is read as the mixed number 13 + 4/5■4 4/5 is read as the mixed number 4 + 4/5

Let's evaluate:

13

+ \frac{4}{5}

+ 4

+ \frac{4}{5}

ⓘ Start from

13

and move forward

4

on the number line:

13 + 4

17

■Add fractions by using a common denominator and then adding their numerators:

\frac{4}{5} + \frac{4}{5}

\frac{4 + 4}{5}

17 + \frac{4 + 4}{5}

ⓘ The numerator and the denominator are computed before the division:

4 + 4

8

17 + \frac{8}{5}

▶Result:

18

\frac{3}{5}

ⓘ Since the fraction

\frac{8}{5}

exceeds 1, take

1

out of it and add it to the whole part:

17 + \frac{8}{5}

17 + \frac{5 + 3}{5}

17 + \frac{5}{5} + \frac{3}{5}

17 + 1 + \frac{3}{5}

18 + \frac{3}{5}

The numeric value of:

18 + \frac{3}{5}

is:

18 + 0.6

▷

18.6

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