ADDING & SUBTRACTING FRACTIONS

Niklaus bought 5/6 pound of fudge and Noah bought 1/2 of a pound of fudge. Which student bought more fudge?

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• Look at the denominator
• What are the common multiples of 6 and 2?

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• 6: 6, 12, 18, 24, 30, 36, 42, 48, 54
• 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20
• My LCM is 6.

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• Find equivalent fractions!
• Multiply the numerator and denominator by the same factor

Maile bought 1/4 of a pound of jelly beans and Alexis bought 1/6 of a pound of jelly beans. How much jelly beans did they buy all together?

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• Look at the denominator
• What are the common multiples of 6 and 4?

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• 6: 6, 12, 18, 24, 30, 36, 42, 48, 54
• 4: 4, 8, 12, 16, 20, 24, 28, 32, 36
• My LCM is 12.

What happens when I multiply the denominators of both fractions?