An Intermediate Arithmetic; Uniting Mental and Written Exercises in a Natural System of Instruction

An Intermediate Arithmetic; Uniting Mental and Written Exercises in a Natural System of Instruction

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1873 edition. Excerpt: ...be shortened by omitting the denominators, thus: 14-s-I = 14 X 5-h 3 = 23. 10. 16 by. 13. 60 by J. 16. 30 by 2j. 11. 20 by $. 14. 21 by?. 17. 40 by 3j. 12. 45 by f. 15. 42 by f. 18. 16 by 5$. Art. 77. Rule.--To divide an integer by a fraction, Multiply the integer by the denominator of the fraction, and divide the product by the numerator. LESSON XIV. Fractions divided by Inactions. 1. If of a barrel of flour will supply a family. one month, how many months will of a barrel last? 2. How many times is contained in f? in? 3. If of a yard of cloth will make a vest, how many vests Avill of a yard make? 4. How many times in in? 5. If a pound of butter cost of a dollar, how many pounds can be bought for of a dollar? Suggestion.--Change to eighths. 6. How many times in f? in $? 7. How many times J in I in,1 in? 8. How many times in, in f? f in? WRITTEN EXERCISES. 1. Divide f by. Peocess: f = A-= A-j-A = f = i. 2. by f. 5.? by. 8. 2 by. 3. by 6. by. 9. 3J by. 4-i3i by. 7. j by f. 10. f by2j. Art. 78. Rule.--To divide a fraction by a fraction, Reduce the fractions to a common denominator, and divide the numerator of the dividend by the numerator of the divisor. Note.--When pupils are familiar with this method, they may be taught to divide by inverting the terms of the divisor and multiplying. This method is fully explained in the author's Complete Arithmetic. LESSON XV. Numbers Fractional 'Parts of Other Numbers. 1. 5 is of what number? Solution.--5 is J of 3 times 5, or 15. 2. 7 is J of what number? 3. 12 is of what number? 4. 12 is of what number? 5. 16 is of what number? 6. 10 is of what number? Solution.--If 10 is of a number, of the number is of 10, which is 5; if 5...show more

Product details

  • Paperback | 44 pages
  • 189 x 246 x 2mm | 95g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236916050
  • 9781236916051