Hi there! Thanks for asking a question here on Brainly.  The fraction [latex] frac{15}{45} [/latex] can be reduced to [latex] frac{1}{3} [/latex], so it is not in lowest terms. Answer: False Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia