explain 9/10-13/20 — step-by-step solution

Let's calculate:

\frac{9}{10} - \frac{13}{20}

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

\frac{9 \times 2 - 13}{20}

ⓘMultiplications are done before additions and subtractions:

9 \times 2

18

\frac{18 - 13}{20}

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

18 - 13

5

\frac{5}{20}

ⓘWe simplify the fraction by dividing the numerator and the denominator by the number

5

\frac{5}{20}

\frac{1 \times 5}{4 \times 5}

\frac{1}{4}

▶Result:

\frac{1}{4}

The numeric value of:

\frac{1}{4}

equals:

▷

0.25