18 5/8 + 20 11/16

⚠ 18 5/8 is read as the mixed number 18 + 5/8■20 11/16 is read as the mixed number 20 + 11/16

Let's evaluate:

18

+ \frac{5}{8}

+ 20

+ \frac{11}{16}

ⓘ Start from

18

and move forward

20

on the number line:

18 + 20

38

■To add fractions, put them over the same denominator, then add the numerators:

\frac{5}{8} + \frac{11}{16}

\frac{2 \times 5 + 11}{16}

38 + \frac{2 \times 5 + 11}{16}

ⓘ Multiplications are done before additions and subtractions:

2 \times 5

10

38 + \frac{10 + 11}{16}

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

10 + 11

21

38 + \frac{21}{16}

▶Result:

39

\frac{5}{16}

ⓘ The fraction

\frac{21}{16}

is greater than 1: extract

1

from it and add it to the whole part:

38 + \frac{21}{16}

38 + \frac{16 + 5}{16}

38 + \frac{16}{16} + \frac{5}{16}

38 + 1 + \frac{5}{16}

39 + \frac{5}{16}

The numeric value of:

39 + \frac{5}{16}

is:

39 + 0.3125

▷

39.3125

100% free