explain 9/20+17/18 — step-by-step solution

Let's calculate:

\frac{9}{20} + \frac{17}{18}

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

\frac{9 \times 9 + 17 \times 10}{20 \times 9}

ⓘMultiplications are done before additions and subtractions:

9 \times 9

81

‖

17 \times 10

(10 + 7) \times 10

10 \times 10 + 7 \times 10

100 + 70

170

ℹ

20 \times 9

180

\frac{81 + 170}{180}

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

81 + 170

251

▶Result:

\frac{251}{180}

The approximate value of:

\frac{251}{180}

equals:

▷

\approx 1.3944