Yes: 42/105 = 2/5
105/180 = 21/36 = 7/12
Yes. It is 21/20.
If you simplify it, it's 105 and 3/4 (<--fraction).
1 7/30
Divide the numerator and denominator by their greatest common factor, which is 5. Thus, 80/105 = 16/21
No. Nobody can.
105/112 = 15/16
2/5
2/5
12/30 = 2/5
30/9 = 10/3