Ans. $13.121⁄2.
At 61⁄4c per pound how much sugar will $5 buy? As 61⁄4c is 1⁄16 of $1, evidently each dollar will buy 16 pounds. Ans. 80 pounds.
In multiplying by a fraction, write the quantity in a line with the numerator and cancel common factors.
Find cost of 72 yards of carpet, at 871⁄2c ($7⁄8) a yard. Cancel 8, also 72 and write 9 instead. Ans. $63.
78 × 72 9 = 63
Of 28 pounds of coffee, at 183⁄4c ($3⁄16) per pound. Cancel 28 and 16, write 7 and 4. Ans. $51⁄4.
316 ×4 28 7 = 214 or 51⁄4
At 662⁄3c ($2⁄3) per bushel, how many bushel of wheat will $34 buy? Ans. 51 bushel.
32 × 34 17 = 51
In division, invert terms of fraction.