In a jar, 1/2 of the marbles are red, 1/4 are white, and 1/5 are blue. The fraction of the marbles that are not red, white, and blue is ____?
- 1/20
- 2/30
- 3/40
- None of these
Explanation
Total fraction of red, white, and blue marbles:
= 1/2 + 1/4 + 1/5
= 10/20 + 5/20 + 4/20
= 19/20
Fraction of marbles that are not red, white, and blue:
= 1 - 19/20
= 1/20
Last verified on 09-03-2026
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