Answer:
Step-by-step explanation:
first find a common denominator:
1/2=2/4
Next keep change change
-1/4+-2/4=-3/4
Find another common denominator
4x7=28
3x7=21
4x4=16
-21/28 divided by -16/28=588/448 or 21/16 or 1 5/16
