Subtracting fractions with totally different denominators includes discovering a typical denominator, which is the least widespread a number of of the denominators of the fractions being subtracted. As soon as the widespread denominator is discovered, the numerators of the fractions are subtracted, and the result’s written over the widespread denominator.
Discovering the least widespread a number of might be carried out by itemizing the multiples of every denominator and figuring out the smallest quantity that seems in each lists. One other technique is to prime factorize every denominator and multiply the distinctive prime elements collectively. The product of those distinctive prime elements is the least widespread a number of.
