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.
There would be 36 girls, following the ratio shown.
Answer:
159.82
Step-by-step explanation:
262 100 let unknown be "x"
x 61
262 x 61 = 100x
15982= 100x
15982/100 = x
x= 159.82