0.42 = 42/100 = 21/50
Divide by 100 to get to a fraction, then look for common factors between 42 and 100 to reduce to lowest terms. 42/100=21/50
The lowest term for 14 over 42 = 1/3
27/50 is the lowest term.
10 over 42 in lowest terms = 5/21
7/8
7/10 is the lowest terms for 35/50
2/7
84/1
2.66 as a lowest term fraction is 133/50
51/50
1/50