42 lbs to troy pounds conversion result above is displayed in three different forms: as a decimal (which could be rounded), in scientific notation (scientific form, standard index form or standard form in the United Kingdom) and as a fraction (exact result). Every display form has its own advantages and in different situations particular form is more convenient than another. For example usage of scientific notation when working with big numbers is recommended due to easier reading and comprehension. Usage of fractions is recommended when more precision is needed.
If we want to calculate how many Troy Pounds are 42 Pounds we have to multiply 42 by 175 and divide the product by 144. So for 42 we have: (42 × 175) ÷ 144 = 7350 ÷ 144 = 51.041666666667 Troy Pounds
So finally 42 lbs = 51.041666666667 troy pounds
