Answer:
She isn't correct because after you find the common denominator, the numerator needs to be changed as well, so when she multiplied the denominator of 2/3 by 4 to get 12, she also had to multiply the 2 by 4, to get 8/12, and then subtracted, because otherwise, the new fraction isn't equivalent to the original fraction.
Answer:
90+3/10 over 100
Step-by-step explanation:
Hope this helped you
Answer:
C
Step-by-step explanation:
I'm pretty sure it is A, graphing calculators might .help with these
Answer:
Step-by-step explanation:
4=2(2), 6=2(3) so the lcd is 2(2)3=12
