5 7/8−(3 1/2+1 1/4)? (9 1/2−3 7/8)+(4 4/5−1 1/2)
(12 1/3+5 1/3)−(7 4/8−7 1/6)

Simplest form.

the first one is -89/8 in simplest form is −11.125

the second one is 1767/40 in simplest form is 44. 175

the third one is 719/12 in simplest form is 59.916

Step-by-step explanation:

hope this helps

step-by-step explanation:

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°