Question

Solve each multiplication problem, use the cancellation method if possible, and reduce your answers. a. 39⁄64 × 8⁄13 b. 2⁄3 × 1⁄5 × 4⁄7 c. 3⁄5 × 10⁄12 × 1⁄2 d. 4⁄9 × 54 e. 20 × 3 1⁄5 f. 11 × 2 7⁄11 g. 5 1⁄3 × 5 1⁄8 h. 10 2⁄3 × 1 3⁄8

Answer 1

A). 39⁄64 × 8⁄13 ====>  39 / 64  *  8 / 13 ===> 312/832 ==>  3 / 8  (Decimal:  0.375).

B). 2⁄3 × 1⁄5 × 4⁄7 ==>  2/3  *  1/5 * 4/7  ====>  8 / 105 ===> (Decimal: 0.07619)

C). 3⁄5 × 10⁄12 × 1⁄2 ===> 3/5 *  10/12 ===> 30/60 ===>  1/2 ==> 1/2 *  1/2 ===> 1/4 (Decimal:      0.25)

D). 4⁄9 × 54 ===>  4 *  54/ 9.1  ====>  216/9 ===> 24/1   ===>  24

E). 20 × 3 1⁄5 ===> 20 * 16/ 1.5  ====>320/5 ====>  64/1  =====> 64

F). 11 × 2 7⁄11 ====>  319/11  ====> 29/1    ======>  29

G). 5 1⁄3 × 5 1⁄8 ==> 16/3 * 41/8 ==> 656/24 ==> 82/3 ==> 27 1/3 ==> (Decimal:  27.33333)

H).  10 2⁄3 × 1 3⁄8  ===>  32/3 *  11/8 ===> 44 / 3   ===>  14 2/3  ==>  (Decimal: 14.666667)

Hope that helps!!!!                                   : )