BBC

How to simplify fractions

Click to see a step-by-step slideshow. STEP 1: Write the question and circle the key information. Draw a bar and split it into 12 equal segments: the denominator of the fraction. Label the end '/12'.
BBC

How to divide by a fraction using bar models

Dividing by a fraction tells us how many smaller parts make up a whole number or another fraction. Bar models can help visualise the process of dividing by a fraction. We can also use the 'invert and ...
C&EN

Sulfur Determination in Brazilian Petroleum Fractions by Mid-infrared and Near-infrared Spectroscopy and Partial Least Squares Associated with Variable Selection Methods

† Grupo de Química Analítica e Quimiometria, Department of Chemistry, Federal University of Juiz de Fora, 36036-900 Juiz de Fora, Minas Gerais, Brazil ‡ Laboratory of Research and Development of ...
World Scientific

Mathematics for Biosciences

Mathematics for Biosciences is an ideal resource for those students needing a complete course of Mathematics, from basic algebra to advanced calculus and their applications. More than just a ...