help omg.. I need it.

Answer:
43 3/4
Explanation:
You need to subtract 78 21/100 by 34 23/50. The first thing you do is convert the mixed number into a improper fraction. Your equation would know read 7821/100 - 1723/50. So now you just subract the fractions, whichs leaves you with 1745/4 and hat siplifies to 43 3/4
Answer: 43 3/4
Explanation:
78 21/100=78.21
34 23/50=34 46/100=34.46
78.21-34.46=43.75=43 3/4