17 1/5 + 15 11/20 + 7 4/5 — step-by-step solution

⚠ 17 1/5 is read as the mixed number 17 + 1/5

⚠ 15 11/20 is read as the mixed number 15 + 11/20

Let's calculate:

17

+ \frac{1}{5}

+ 15

+ \frac{11}{20}

+ 7

+ \frac{4}{5}

32

+ \frac{4 + 11}{20}

+ 7

+ \frac{4}{5}

39 + \frac{15}{20} + \frac{4}{5}

39 + \frac{15 + 4 \times 4}{20}

39 + \frac{15 + 16}{20}

39 + \frac{31}{20}

ⓘThe fraction

\frac{31}{20}

is greater than 1: add its integer part

1

to the whole part:

\frac{31}{20} + 39

40 + \frac{11}{20}

▶Result:

40

\frac{11}{20}

The numeric value of:

40 + \frac{11}{20}

is:

40 + 0.55

▷

40.55