Fractions - What is one-half plus one-third?

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Percents Fractions and Decimals (PFD) – Rational Numbers and Proportional Reasoning

Happy Birthday Song

The Happy Birthday Song is a good way to learn and remember to use common denominators. (I'm still fixing the graphics and the Word file...)

"Happy Birthday Song"

Verse 1   math1

You must have common denominators,
You must have common denominators,
To add or subtr-act,
You must have common denominators.

Verse 2 math2

You must have like units,
You must have like units,
To add or subtr-act,
You must have like units.

Verse 3 math3

You must have like terms,
You must have like terms,
To add or subtr-act,
You must have like terms.

Verse 4   math4

You must have like radicals,
You must have like radicals,
To add or subtr-act,
You must have like radicals.


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James R. Olsen, Ph.D. ~ Western Illinois University
URL: www.wiu.edu/users/mfjro1/wiu/MathFundamentals/fractions/fractions.htm
updated: September 23, 2020 11:39 AM