Найдите произведение чисел. а)1/4 и 5/8 в)16/9 - вопрос №1458169310692733328277154171420 от dkogotyzeva 09.03.2023 00:41

Question

Математика: Найдите произведение чисел. а)1/4 и 5/8 в)16/9 и 3/10 д)6/9 и 27/3 ж) 3/32 и 8/27 б)7/15 и 5/49 г)10/13 и 26/45 е)7/15 и 5/14 з)51/64 и 12/17

dkogotyzeva · Answer

А) 1/4 * 5/8 = (1*5)/(4*8) = 5/32б) 7/15 * 5/49 = (7*5)/(15*49) =(1*1)/(3*7) = 1/21в) 16/9 * 3/10 = (16*3)/(9*10) = (8*1)/(3*5) = 8/15г) 10/13 * 26/45 = (10*26)/(13*45) = (2*2)/(1*9) = 4/9д) 6/9 * 27/3 = (6*27)/(9*3) = (2*3)/(1*1) = 6/1 = 6е) 7/15 * 5/14 = (7*5)/(15*14) = (1*1)/(3*2) = 1/6ж) 3/32 * 8/27 = (3*8)/(32*27) = (1*1)/4*9) = 1/36з) 51/64 * 12/17 = (51*12)/(64*17) = (3*3)/(16*1) = 9/16...