The factors of 56 are...
1,2,4,7,8,14,28, and 56
71
14, 20 or 5, 56 or 10, 28
-8 and +7
160
the only two odd numbers are 57 and 59 which give a sum of 116
-56
56
71
66
82
-7 and 8
14, 20 or 5, 56 or 10, 28
7 * 8 = 56 1 * 56 = 56
More than that. You need to multiply the whole number, the farctions AND cross multiply the whole numbers and the fractions. Then add together all the answers. Thus, 23/4 * 56/7 = 2*5 + (3/4*6/7) + 2*6/7 + 3/4*5 Actually, it is far simpler to convert the mixed fractions to improper (top heavy) fractions, and then multiply the numerators together to give the numerator of the answer and multiply the denominators together to give the denominators of the answer.
1 x 56, 2 x 28, 4 x 14, 7 x 8
7*8 = 56
168