Question

Which shows the fractions in increasing order?
A 4/9, 5/9, 5/12, 7/12
B 4/9, 5/12, 7/12,5/9
C 5/12, 4/9, 5/9, 7/12

Answer 1

If you find the least common denominator, it'll become much more transparent. The LCD for 9 and 12 should be 108. Multiply all fractions with the denominator of 9 by 12 and vice versa for 12. You can now ignore the denominators which will yield:

A) 48, 60, 45, 63
B) 48, 45, 63, 45
C) 45, 48, 60, 63

You can now ignore the denominators