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When reducing fractions (finding an equivalent fraction) you have to determine a common divisor of both the numerator (top number) and the denominator (bottom number). For simplicity's sake 18 and 42 are both divisible by 2 so they can be reduced to 9 over 21.
When each factor is multiplied by 2 again the fraction is still equal to 18/42. However, in this instance you can see that 9 and 21 still have a common factor and can still be reduced. Consider the number 3 this time. After dividing again the most simplified equivalent factor is 3 over 7.
(The most simplified form of a fraction is often what most math professors look for)
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What is an equivalent fraction for 21 over 25?
42/50
What fraction is equivalent to 28 over 42?
2/3
In fraction What is 42 60 equivalent to?
The fraction 42/60 simplifies to 7/10.
What fraction is equivalent to .42?
0.42 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 42/100. You can simplify this rational fraction if you require.
What is the decimal if the fraction if its 42 over 11?
42/11 = 3.8181 . . .
