Excerpt from A Concise System of Commercial Arithmetic, Adapted to Modern Practice: With an Appendix, Containing a Series of Queries on Bills and Merchants' Accounts, and a Course of Letters on Business; Also, Duodecimals, Timber-Measuring, Artificers' Computations, and the Square and Cube Root; With Their Application In decimals, the Writer has endeavoured to avoid being too concise, by omitting the arithmetic of repeaters, as several modern Authors have done thereby rendering their subsequent calculations inaccurate or to treat the subject more fully than mercantile practice required. He has given rules for reducing circulating decimals to vulgar fractions, by which any question where such decimals occur may be more easily wrought than by the rules usually given in that branch of decimals. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.