22. Reduce to sixths; to eighths; to tenths. 23. Reduce to 10ths; to 20ths; to 30ths. 24. Reduce to 12ths; to 20ths; to 36ths. 25. Reduce and to 12ths. 26. Reduce,, and ğ to 40ths. 27. Reduce,, 1 to 24ths. NOTE. When fractions have the same denominator they are said to have a common denominator. 28. Reduce and to a common denominator. ANALYSIS.-A common denominator of halves and fifths is tenths; equals, and equals. and to a common denominator. 29. Reduce 3' 5' to a common denominator. 5. FRACTIONS TO LOWER TERMS. 1. How many fourths in? ANALYSIS. Since equals, there are as many 4ths in as is contained times in, or . Since equals 3, by what do we divide both numerator and denominator of to produce? NOTE. To reduce a fraction to lower terms, divide both numerator and denominator by a number that will divide each. 11. By what may we divide both numerator and denominator of ?8? 10? 12. Reduce to thirds; 19 to 5ths. 13. Reduce to 3ds; to 4ths. 14. Reduce to 6ths; 0 to 4ths. 12 8 18. Reduce 1 to 4ths; 18 to 10ths; to 5ths. NOTE.-When a fraction cannot be reduced to one having a less de nominator, it is said to be in its lowest terms. 19. Reduce and § to their lowest terms. 26. Reduce and 35 to their lowest terms. 27. Reduce and to their lowest terms. 28. Reduce 18 and 15 to their lowest terms. 6. COMPOUND FRACTIONS. A compound fraction is a fraction of a fraction; as, of of . 1. What is of } ? ANALYSIS. Since equals, of } is { of %, or . 7. If I had of a dollar and spent of it, how much did I spend? 8. A man sells 9. How much is of 14 of his corn; how much does he sell? of of an inch? 10. A man earned of a dollar and his son as much; 20. A boy had of a dollar and spent of it; how much did he spend? 21. If a boy has of a pie and gives away of it, how much does he give away? 22. If Amos has of a dollar and spends of it, how much does he spend? 23. If I give away of of my money, how much do I give away? 24. A boy had 40 cents: he spent of of it; how much did he spend ? 25. A horse cost 120 dollars, and a cow cost of as much; how much did the cow cost? 26. A gentleman who owned of a farm sold of his share; how much of the farm did he sell? 27. George had of a bushel of chestnuts: he shared them equally among 6 of his playmates; what part of a bushel did each get? 28. William had of a dollar, and shared it with 3 brothwhat part of a dollar did each get? ers; ADDITION OF FRACTIONS. 1. What is the sum of of a pie and of a pie? 2. What is the sum of 3 3. What is the sum of of a dollar and 2 of a dollar? of a dollar and 4. What is the sum of 3 of an orange and of a dollar? of an orange? 5. How much is of a peck, g of a peck, and § of a 40. What is the sum of 23 and 11? SOLUTION 1.-2 equals ; 1 equals ; equals 12, and equals 12; plus 11⁄2 equals 12, or 311. SOLUTION 2.-2 plus 1 are 3; equals 12, and equals 1; 11⁄2 plus are; hence 23 plus 1 equals 311. NOTE.-In solution 2 the whole numbers and the fractions are added separately. 51. I paid of a dollar for a hen and of a dollar for a duck; how much did I pay for both? 52. If a book cost of a dollar and a slate of a dollar, how much do both cost? 53. If I pay of a dollar for a dinner and 3 of a dollar for car-fare, how much do I pay for both? |