IMO Practice Test — Fractions of a Whole
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
medium
Pizza cut in 8 slices. Eat 3. Fraction left?
3/8
5/8
6/8
7/8
Explanation: 8-3=5 slices left = 5/8
Question 2 of 6
hard
Closest to one whole: 1/2 3/4 1/4 2/4?
1/2
2/4
1/4
3/4
Explanation: 3/4=0.75 closest to 1
Question 3 of 6
medium
Rope in 4 equal parts. Use 2 parts. Fraction used?
1/4
2/4
3/4
4/4
Explanation: 2 of 4 = 2/4 = 1/2
Question 4 of 6
hard
Order from smallest: 1/2 1/4 1/3
1/4 1/3 1/2
1/2 1/3 1/4
1/3 1/4 1/2
1/4 1/2 1/3
Explanation: 1/4 < 1/3 < 1/2
Question 5 of 6
medium
To show a fraction correctly the shape must have?
Any shape
Equal parts only
Unequal shapes
Circles only
Explanation: Fractions require equal parts
Question 6 of 6
hard
If 1/4 of a number is 5 the whole number is?
10
15
20
25
Explanation: 5x4=20