Caryn Tan's answer to KENNY PHUA's Primary 4 Maths Singapore question.
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Use a common denominator.
How to find common denominators:
Eg. common of 2 and 5 is 10
2,4,6,8,10
5,10
Eg. common of 3 and 9 is 9
3,6,9
9
Eg. common of 3 and 7 is 21
3,6,9,12,15,18,21
7,14,21
How to find common denominators:
Eg. common of 2 and 5 is 10
2,4,6,8,10
5,10
Eg. common of 3 and 9 is 9
3,6,9
9
Eg. common of 3 and 7 is 21
3,6,9,12,15,18,21
7,14,21
Date Posted:
1 year ago
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