This math topic focuses on applying knowledge of ratios and solving problems that involve calculating equivalent ratios using non-integer multiples, specifically with decimals. It involves practice in expanding recipes based on given ratios to find the required amounts of ingredients in different scenarios. The problems present real-world applications by asking for specific amounts of one ingredient when the quantity of another is given, thereby enhancing understanding of ratios and proportions in practical contexts. Each question comes with multiple-choice answers, providing a way to practice and confirm the understanding of equivalent ratios.