5 - Fractions, Decimals and Percentages Flashcards
1
Q
How do you make 0.5 recurring (0.55555555……) into a fraction
A
0.55555...... = x 10x = 5.55555555... 10x - x = 5.5555555... - 0.55555555... 9x = 5 x = 5/9
2
Q
How do you know if a fraction creates a terminating decimal?
A
If the prime factors of the denominator are just 2 and 5 then it is terminating
