Oral Using aliquot parts, reduce the following to mixed num At sight, reduce the following to common fractions or mixed A fraction in lowest terms whose denominator contains other prime factors than 2 and 5 cannot be reduced to an exact entire decimal; e.g. 3, 8, 15, 1, 18, 5 8 19 Such a fraction may be reduced to a decimal of nearly the same value by carrying the division to a certain number of decimal places, thus: Reduce to a decimal of four places. Oral REVIEW AND PRACTICE (For class drill, not for assignment.) 1. What three numbers multiplied together equal 12? 2. What dimensions could a cake of maple sugar have to contain 12 cubic inches? = 3. 4 X 3X ? 24. A block of wood 4 in. long and 3 in. wide must be how thick to contain 24 cubic inches? 4. What dimensions could a box have to hold 36 cu. ft. of coal? 5. What dimensions could a box have to hold: (a) 40 inch-cubes? (b) 18 inch-cubes? (c) 32 inch-cubes? 6. A box is 4 in. wide and 11⁄2 in. deep. It contains 72 cubic inches? How long is it? 7. How many inch-cubes are equal to a rectangular prism 3 in. by 2 in. by 5 in.? |