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To add (or subtract) unlike fractions, first change them to fractions with same denominator. Then, add (or subtract) the numerators and put the result over the common denominator.
Notice that the denominators of both the fractions are not the same.
So, let’s change them to fractions with same denominator.
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Now, add the fractions. Add the numerators and put the obtained result over the common denominator.
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| So, |
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.
