Answer:
Step-by-step explanation:
14+(−7)+7
Now −7 is the idea or the construct that is the complete opposite of 7, when it comes to additive regions. So, they would cancel out.
And we are left with
14.
12/30
So we know that the denominator-numerator=18
And we also know that it's equal to 4/10 or 2/5.
Soooooooooooooo the most easiest is just to trial and error: 12/30
But I don't really know the more complex formula...
.84
21/25 = .84
Yes you can divide fractions using models here is an example
