No doubt they can easily identify ÷ and the division bar ⟌. Start by showing the students the four ways to write a division symbol.
Decimal.to fraction converter how to#
When you are teaching students to convert a fraction to decimal, they must already know how to do long division. For example, 0.48 is 48/100, which can be simplified to 12/25. Practice giving the student decimals whose equivalent fractions can be simplified. This is not the simplest way to write that fraction, since both the numerator and the denominator (the top and bottom numbers) can be divided by 5. For example, 0.5 is “five tenths.” As a fraction, that is 5/10. Once you have converted a decimal to a fraction, you may need to simplify the fraction. Remember, all decimals will be converted to fractions with denominators that are powers of 10: 10, 100, 1000, etc. Practice this technique with decimals in the hundredths and thousandths place as well. When a student reads 0.3 as “three tenths,” ask her how to write three tenths as a fraction: 3/10. Start with decimals in the tenths place and have the student say the value out loud. If they can look at 0.5 and tell you that is “five tenths,” you are halfway home. When you are teaching kids to convert numbers, you want to start with decimal to fraction conversion it’s easier. Learning to move back and forth between decimals and fractions helps first with measurements, but it’s a skill you use consistently in higher-level mathematics like algebra and geometry. Although you can express ⅓ as a decimal, you can’t add, subtract, multiply, or divide that decimal exactly. For example, ⅓ is a precise amount, but when you try to show that with a decimal, you get 0.333…where the 3 repeats infinitely. The place values of decimals are all multiples of 1/10: tenths, hundredths, thousandths, and so on.įractions have the upper hand when it comes to expressing a precise value. Which number is greater: 0.5 or 0.3? It’s easy to spot. Decimals are easier to compare to one another since they all operate on a base-10 system. How to Convert Numbersįractions and decimals are two sides of the same coin they both express parts of a whole. Read on to learn how to teach kids to convert a decimal to fraction and a fraction to decimal. Numbers can be expressed in different ways, and that can be a tricky concept for kids.
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