1/4
3/12 = 1/4
The simplest form of the fraction three twelfths is 1/4
12 is the denominator of 3/12 (three twelfths)
70 ---- 120
14/24
18 36ths
1/3
20/12 or twenty twelfths.
You change five sixths into ten twelfths and three quarters into nine twelfths. Then you subtract the nine twelfths from the ten twelfths, which equals one twelfth.
2/3 or 4/6
ten twelfths, 15 eighteenths
1/2,2/4,3/6