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The teaching of mathematics in school is graduated so that each task mastered leads to the next set of problems. There was a time in your life when you didn't know what 1 + 1 was. You mastered that. Mastering the GCF helps you to reduce fractions. Mastering the LCM helps you to add and subtract fractions. Let's look down the road. What else is about mastering the manipulation of numbers and fractions and percentages? Money. Every business uses that in some form or another.

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GCF is used to simplify fractions, especially rates. For example, if you drive 480 miles using 20 gallons of gas, you can use GCF to simplify the fraction to a unit rate.

The GCF of 20 and 480 is 20. 480/20 can be simplified to 24 miles per 1 gallon of gas.

When you are reducing equivalent fractions.

You use GCF to simplify fractions.

Q: Where in life do you use GCF and LCM?

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Gcf you use when you are finding the greatest factor for the numbers. Lcm you use when you are finding the smallest multiple in the numbers factors

The GCF is 4.

The LCM is 11592. The GCF is 2.

The GCF refers to whole numbers, not decimals.

The LCM is their product. The GCF is 1.

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Gcf you use when you are finding the greatest factor for the numbers. Lcm you use when you are finding the smallest multiple in the numbers factors

you use the lcm (least common multiple).

To answer GCF and LCM questions.

To find the GCF and the LCM you have to first at least try to use prime factorization. So use factor trees. Or for the LCM find th least common multiples of the number.

Use the GCF to reduce fractions. Use the LCM to add and subtract unlike fractions. Carpenters work with fractions a lot.

The GCF is 12. The LCM is 360.

The GCF is 4.

The GCF is 68, the LCM is 68

GCF is 2.LCM is 42.The GCF is 2.

The LCM is 11592. The GCF is 2.

The GCF and LCM of 24 and 42 are 6 and 168 respectively.

The GCF is: 16The LCM is: 640The LCM is: 640