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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.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoGCF 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.
Wiki User
∙ 6y agoWhen you are reducing equivalent fractions.
Wiki User
∙ 6y agoYou use GCF to simplify fractions.
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When do you use GCF and LCM?
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
What is the GCF and LCM of 20 and 36?
The GCF is 4.
What is the LCM and GCF of 32 56 and 72?
The LCM is 11592. The GCF is 2.
What is the LCM and GCF of 4 and 6?
The GCF refers to whole numbers, not decimals.
What is the GCF and LCM of 13 and 79?
The LCM is their product. The GCF is 1.
When do you use GCF and LCM?
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
Do you use GCF or LCM to find the least number of something?
you use the lcm (least common multiple).
How do you find GCF and LCM?
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.
What do you use prime factorization for?
To answer GCF and LCM questions.
How do GCF and LCM involve with the real world?
Use the GCF to reduce fractions. Use the LCM to add and subtract unlike fractions. Carpenters work with fractions a lot.
What is the LCM and GCF of 60 and 72?
The GCF is 12. The LCM is 360.
What is the GCF and LCM of 20 and 36?
The GCF is 4.
What is the GCF and LCM of 68?
The GCF is 68, the LCM is 68
What is the LCM and GCF for 6 and 14?
GCF is 2.LCM is 42.The GCF is 2.
What is the LCM and GCF of 32 56 and 72?
The LCM is 11592. The GCF is 2.
What is the GCF and LCM of 24 and 42?
The GCF and LCM of 24 and 42 are 6 and 168 respectively.
What is the LCM and GCF of 4 and 6?
The GCF refers to whole numbers, not decimals.
