When you subtract a fraction from itself.
Two equivalent fractions also have a difference of zero.
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When one of them is the additive inverse of the other. Equivalently, when one is the other multiplied by -1.
Only if the numerator is zero,
The difference between the fractions a/b and c/d = abs[(ad - bc)/bd]
fractions which are equal to 0.05 = 5/100, 1/20, 2/40, 3/60
The sum of two fractions will be equal to one when the numerator and the denominator of their sum are the same. Example: 1/3 + 2/3 = 3/3 or 1
Two fractions are equivalent if the fully simplified fractions are equal. If you can multiply the fraction with the smaller numerator and denominator by the same value to equal the second fraction. For example the fractions 3/4 and 9/12. The nominator and denominator, 3 and 4 have both been multiplied by 3 to equal 9/12. Cross multiply. If the products are equal, the fractions are equal. Cross multiplying means to multiply each numerator of one fraction with the denominator of the other fraction.