Question

Выполните умножение:а) 9/10*5/6б) 6/25*20/21в) 17/30*26/51г) 40/7*14/5д) 57/37*74/76е) 81/115*46/81ж) 3/16*4з) 23*5/46и) 5/13*39к) 5*2 1/5л) 3 3/5*1 1/9м) 4 2/7*2н) 2 14/15*6 6/11о) 2 2/25*1 9/16п) 13/43*8 7/26 ПОМОГИТЕ ПЖ СРОЧНООООО!!!!!​

Answer 1

Ответ:

ВОТ ПОЖАЛУЙСТА !

Пошаговое объяснение:

Answer 2

а) 9/10 * 5/6 = (9 * 5) / (10 * 6) = 45 / 60 = 3/4

б) 6/25 * 20/21 = (6 * 20) / (25 * 21) = 120 / 525 = 8/35

в) 17/30 * 26/51 = (17 * 26) / (30 * 51) = 442 / 1530 = 221/765

г) 40/7 * 14/5 = (40 * 14) / (7 * 5) = 560 / 35 = 16

д) 57/37 * 74/76 = (57 * 74) / (37 * 76) = 4218 / 2812 = 2109/1406

е) 81/115 * 46/81 = (81 * 46) / (115 * 81) = 3726 / 9315 = 1242/3105

ж) 3/16 * 4 = (3 * 4) / 16 = 12 / 16 = 3/4

з) 23 * 5/46 = 23 * (5/46) = 115/46 = 2.5

и) 5/13 * 39 = (5 * 39) / 13 = 195 / 13 = 15

к) 5 * 2 + 1/5 = 10 + 1/5 = 10 1/5

л) 3 + 3/5 * 1 + 1/9 = 3 + (3/5 * 1) + 1/9 = 3 + 3/5 + 1/9 = (45 + 27 + 5) / 9 = 77/9

м) 4 + 2/7 * 2 = 4 + (2/7 * 2) = 4 + 4/7 = (28 + 4) / 7 = 32/7

н) 2 + 14/15 * 6 + 6/11 = 2 + (14/15 * 6) + 6/11 = 2 + 56/15 + 6/11 = (330 + 1232 + 90) / 165 = 1652/165 = 10

о) 2 + 2/25 * 1 + 9/16 = 2 + (2/25 * 1) + 9/16 = 2 + 2/25 + 9/16 = (32 + 1 + 225) / 400 = 258/400 = 129/200

п) 13/43 * 8 + 7/26 = (13 * 8) / 43 + 7/26 = 104/43 + 7/26 = (2704 + 301) / 1118 = 3005/1118