# Write each answer: a) 3/5-(1/4)

Write each answer: a) $\frac{3}{5}-\left(\frac{1}{4}\right)$
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We have to find $\frac{3}{5}-\left(\frac{1}{4}\right)$
Let us first find least common multiplier of 5 and 4. Note that prime factorization of 5 is 5. Also, prime factorization of 4 is 2*2.
Therefore, least common multiplier of 5 and 4 is $5\cdot 2\cdot 2=20$.
Multiply numerator and denominator of the fraction such a way that the denominator of each fraction become 20. We get $\frac{3}{5}-\frac{1}{4}=\frac{3×4}{5×4}-\frac{1×5}{4×5}$

$=\frac{12}{20}-\frac{5}{20}=\frac{12-5}{20}=\frac{7}{20}$