Find a common denominator for both fractions. Remember that adding a negative is the same as subtracting

Refer to part (a). Just remember that you are adding two negatives.

$-1\frac{16}{35}$

Multiply the numerators.

$(9)(−2)=−18$

Multiply the denominators.

$(10)(3)=30$

These two answers are the new numerator and denominator.

$-\frac{18}{30\ }=-\frac{3}{5}$

Flip the second term and multiply. Refer to part (c).

$\frac{1}{4}\times \frac{7}{2}$

$\frac{7}{8}$