explain 7/8-7/9 — step-by-step solution

Let's evaluate:

\frac{7}{8} - \frac{7}{9}

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

\frac{7 \times 9 - 7 \times 8}{8 \times 9}

ⓘMultiplications are done before additions and subtractions:

7 \times 9

63

ℹ

-7 \times 8

-56

‖

8 \times 9

72

\frac{63 - 56}{72}

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

63 - 56

7

▶Result:

\frac{7}{72}

The numeric value of:

\frac{7}{72}

is:

▷

\approx 9.7222 \times 10^{- 2}