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Fast Math - Randomized Fraction Addition

In this quiz the answers change every time you play! Solve these randomised addition of fractions problems as fast as you can!

FORMAT: JetPunk only recognises A-Z and 0-9, so you can't input fractions directly. Simply input TOP followed by BOTTOM in the fraction's simplest form. I.e. if the answer is 3/6, simplify to 1/2 and type either "12", "1 2", "1/2" etc...
Answer must correspond to highlighted box!
Quiz by
Stewart
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Last updated: January 16, 2019
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First submittedJanuary 15, 2019
Times taken13,385
Average score50.0%
Rating4.92
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Problem
Solution
2/4
+
4/10
9/10
1/9
+
5/10
11/18
1/9
+
6/7
61/63
2/3
+
6/11
40/33
1/3
+
3/12
7/12
Problem
Solution
3/9
+
2/5
11/15
4/12
+
6/7
25/21
3/11
+
3/11
6/11
3/6
+
2/11
15/22
8/9
+
2/10
49/45
Problem
Solution
1/12
+
7/9
31/36
7/9
+
1/9
8/9
2/4
+
4/12
5/6
6/11
+
9/10
159/110
8/9
+
5/7
101/63
Problem
Solution
3/9
+
7/8
29/24
1/7
+
1/6
13/42
1/8
+
3/12
3/8
9/10
+
2/5
13/10
6/11
+
9/11
15/11
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8 Comments
+2
Level 80
Jan 16, 2019
Great! There was a mistake in one of my questions: 1/12 + 9/11 =55/61
+2
Level 68
Jan 16, 2019
Hmm, that's rather peculiar because I generated all these using Excel. I'll look into though
+2
Level 68
Jan 16, 2019
I fixed it! Turns out the format for Fractions in excel was defaulting to two digit numbers as the Numerator and Denominator, thus anything with 3 digits would be rounded up or down. Hence the answer was adjusted slightly.

All fixed now though! Thanks for pointing it out :)

+1
Level 67
Mar 26, 2023
if you think this is hard, use this formula :

(a / b) + (c / d) = (ad + bc) / bd

+1
Level 37
Oct 7, 2023
You should use 1 instead of 1/1.
+1
Level 37
Oct 7, 2023
The inproper fractions should be change into mixed fractions: 9/8 can be 1 1/8.
+2
Level 63
Jul 12, 2024
Why? That makes very little sense here.
+1
Level 76
Jul 11, 2024
Awesome quiz! Nominated.