Online Test — Operations with Fractions (Unlike Denominators)
10 Questions • 30 min • Chapter MCQ
30:00
Question 1 of 10
hard
3/4 + 1/8 = ?
7/8
4/12
4/8
1/2
Explanation: 3/4 = 6/8, so 6/8 + 1/8 = 7/8.
Question 2 of 10
easy
3/4 − 1/2 = ?
1/4
2/2
1/2
2/4
Explanation: 1/2 = 2/4, so 3/4 − 2/4 = 1/4.
Question 3 of 10
hard
Of a 1 m ribbon, you use 2/5 m then 1/10 m. How much ribbon is used?
1/2 m
3/15 m
3/10 m
2/10 m
Explanation: 2/5 = 4/10; 4/10 + 1/10 = 5/10 = 1/2 m.
Question 4 of 10
hard
Which is bigger: 5/6 or 4/5?
5/6
4/5
equal
cannot tell
Explanation: 5/6 ≈ 0.833 and 4/5 = 0.8, so 5/6 is bigger.
Question 5 of 10
medium
Two ropes are 3/8 m and 1/2 m. Together they are…
7/8 m
4/10 m
4/8 m
1 m
Explanation: 1/2 = 4/8; 3/8 + 4/8 = 7/8 m.
Question 6 of 10
medium
Maya reads 1/4 of a book on Monday and 1/2 on Tuesday. What fraction has she read?
3/4
2/6
1/8
3/6
Explanation: 1/4 + 2/4 = 3/4.
Question 7 of 10
easy
Which is the smallest: 1/2, 1/3, 1/4?
1/2
1/3
1/4
all equal
Explanation: The more parts you split into, the smaller each part: 1/4 is smallest.
Question 8 of 10
easy
1/2 + 1/4 = ?
3/4
2/6
1/6
2/4
Explanation: 1/2 = 2/4, so 2/4 + 1/4 = 3/4.
Question 9 of 10
medium
2/5 + 1/10 = ?
1/2
3/15
3/10
1/5
Explanation: 2/5 = 4/10, so 4/10 + 1/10 = 5/10 = 1/2.
Question 10 of 10
medium
Ascending order of 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: Smallest first: 1/4 < 1/3 < 1/2.