Answer:
You know, I really don’t like the 312 notation, I think it’s a lot more confusing than writing 3.5 or even 72. I’ll use the latter here, to make the math easier.
Okay, Erica started with 72 yards of fabric. Then, she uses 2/3 of that. But how much is 23 of 72? All you have to do is multiply!
72⋅23=146=73
Alright, she used 73 yards of fabric in the curtain, if you take that out of the total how much will be left?
72−73=21−146=76
Here it is, she will have 76 yards of fabric left. If you want the answer in that notation, it is 116.
You know, I really don’t like the 312 notation, I think it’s a lot more confusing than writing 3.5 or even 72. I’ll use the latter here, to make the math easier.
Okay, Erica started with 72 yards of fabric. Then, she uses 2/3 of that. But how much is 23 of 72? All you have to do is multiply!
72⋅23=146=73
Alright, she used 73 yards of fabric in the curtain, if you take that out of the total how much will be left?
72−73=21−146=76
Here it is, she will have 76 yards of fabric left. If you want the answer in that notation, it is 116.
