A Treatise of Arithmetic: In Whole Numbers & Fractions. Wherein All the Necessary Practical Rules are Laid Down in the Plainest & Most Familiar Terms, & the Truth of Each Rule Demonstrated. To which is Annex'd, a Large Appendix, Containing Many Necessary Tables, & a Great Variety of Curious & Useful Questions, Intermix'd with Instructive Directions & Proper Remarks ...

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Página 167 - If the errors are alike, divide the difference of the products by the difference of the errors, and the quotient will be the answer. If the errors are unlike, divide the sum of the products by the sum of the errors, and the quotient will be the answer.
Página 245 - To reduce fractions of different denominators to equivalent fractions, having...
Página 428 - Subtract the loss of the heavy body weighed by itself in water, previously known, from the loss sustained by the combined solids. The remainder will be the weight of as much water as is equal in bulk to the lighter body.
Página 128 - FELLOWSHIP. Fellowship is a rule, by which merchants, &c. trading in company with a joint stock, are enabled to ascertain each person's particular share of the gain or loss, in proportion to his share in the joint stock.
Página 260 - ... the answer as before. This process consists only in multiplying the numerator of the divisor into the denominator of the dividend, and the denominator of the divisor into the numerator of the dividend. EXAMPLES. 1. Divide f by f Thus, f xf=f|, Ans.
Página 397 - If 8 men in 14 days can mow 112 acres of grass; how many men must there be to mow 2000 acres in 10 days ? ас.
Página 235 - T % = li; ff=2To reduce a mixed fraction to an equivalent improper fraction. RULE. — Multiply the whole number by the denominator of the fractional part, and to the product add the numerator, and place their sum over the said denominator.
Página 302 - ... be as many decimal places in the divisor and quotient together, as there are in the dividend.
Página 385 - The Sun is faid to perform one entire Revolution, (or 360 Degrees) in the Space of 365 Days, 5 Hours, 48 Minutes, and 57 Seconds of Time, called a Tropical or Solar Tear; How much doth it move in one Day ? , // /// Anfw.
Página 403 - B's 5 months, and C's 7 months ; they gained 234!.

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