вычислите: |5/12-4/15| * |1/18+1/2| знаменатель |2/3-5/8| * (-8)

512 - 415 = 75180 - 48180 = 27180 = 960 = 320

118 + 12 = 118 + 918 = 1018 = 59

320 * 59 = 15180 = 336 = 113

23 - 58 = 1624 - 1524 = 124

124 *  (-8) = - 824 = -13

124 : - 13 = - 324 = -18 = - 0,125