volume_mute

Add the following

publish date2024/04/27 11:12:42.841865 UTC

$\frac18 + \frac58$

volume_mute

Correct Answer

$\frac{7}{15}$

Explanation

  • Add the numerators and write the sum over the common denominator 8
    • \(\frac18 + \frac58 = \frac{1 + 5}{8}\)
  • This fraction can be simplified
    • = \(\frac68\)
  • To simplify, factor 6 as 2 • 3 and 8 as 2 • 4.  Then remove the common factor of 2 from the numerator and denominator
    • = \(\require{cancel} \frac{\cancel{2}^1 \cdot 3}{\cancel{2}_1 \cdot 4}\)
  • Multiply the remaining factors in the numerator: 1 • 3 = 3.  Multiply the remaining factors in the denominator: 1 • 4 = 4
    • = \(\frac34\)

Reference

Mathematics for college students


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