Сравните дроби: 1) 9/10 и 17/20 2) 4/9 и 10/27 - вопрос №6264612191017202491027331041546723 от zaxar3512 30.09.2020 22:30

Question

Математика: Сравните дроби: 1) 9/10 и 17/20 2) 4/9 и 10/27 3) 3/10 и 4/15 4) 6/7 и 2/3 вычислите: 1) 7/12 - 3/8 2) 11/16 - 5/8 3) 8/15 - 4/9 4) 11/48 - 5/36 5) 4/5 - 2/3 + 4/15

zaxar3512 · Answer

1) 7/12 - 3/8 = (14 - 9)/24 = 5/242) 11/16 - 5/8 = (11 - 10)/16 = 1/163) 8/15 - 4/9  = (24 - 20)/45 = 4/254) 11/48 - 5/36 = ( 44 - 15)/144 = 29/445) 4/5 - 2/3 + 4/15 = (12 - 10 + 4)/15 = 6/151) 9/10 17/20 | 2018/20 17/202) 4/9 10/27 | 2712/27 10/273) 3/10 4/15 | 309/30 8/304) 6/7 2/3 | 2118/21 14/21...