7/10 + (-17/20)
Make the denominators equal:
14/20 + (-17/20)
Add:
-3/20
Answer:
13/12
Step-by-step explanation:
1-2/3+9/12
least common denominator is 12
12/12 - 8/12+9/12
13/12
Answer:
<h2>x = 3</h2>
Step-by-step explanation:
Answer:
12°
Step-by-step explanation:
a right triangle implies there is an angle that is 90°
another angle is 78°
the third angle is 180 - (90 + 78) = 180 - 168 = 12°
