To find out if two fractions are equivalent, either reduce them both to their simplest forms (which will be the same number if they're equivalent) or convert them to decimals (which will be the same number if they're equivalent).
To make an equivalent fraction of a given fraction, multiply the numerator and the denominator of the given fraction by the same counting number.
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(1) find the LCD. (2) find the factor that each original denominator needs to be multiplied by to get the LCD. (3) multiply both the numerator and the denominator by that factor.
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To find equivalent fractions, you need to multiply or divide the top and bottom of the fraction by the same amount. For 30/35 we can divide both top and bottom by 5 to get 6/7. This is the simplest equivalent fraction. We can then multiply top and bottom by 2 to get 12/14, or by 3 to get 18/21, or by 4 to get 24/28, and so on to find other equivalent fractions.
---- 3 fifths is equivalent to ? tenths
You can either convert fractions to decimals and compare the decimal numbers; find equivalent fractions with the same denominator and then compare numerators or find equivalent fractions with the same numerator and then compare denominators.