"Why Do You Flip Fractions When Dividing? : Even Math Haters Can Understand It Immediately by Drawing Diagrams" Satoru Itabashi Price: ¥1200 Please check the images before purchasing. ____________ What use is factoring in life? This book answers that question directly! Training in mathematical thinking that can be applied to business and real life, understood through diagrams. A remedial arithmetic and mathematics course for humanities students who hate math. Why do you flip and multiply when dividing fractions? Why does minus times minus equal plus? The cause of math aversion lies in the things you've passed over without questioning! This book advocates "explaining by applying it to real life" and "expressing it with diagrams." Even those who have been frustrated by the difficulty of previous math books can read it without difficulty because it explains within the scope of elementary school arithmetic and junior high school mathematics.