Вправи 1051 - 1200 » 1063-1064

1063. Виконай дії. а) 7 – 3/5 = 65/5 – 3/5 = 62/5; б) 5 – 27/31 = 431/31 – 27/31 = 44/31; в) 3 – 21/31 = 231/31 – 21/31 = 210/31; г) 4 – 20/63 = 363/63 – 20/63 = 343/63. 1064. Виконай дії. а) 2 – 4/7 = 17/7 – 4/7 = 13/7; б) 7 – 18/43 = 643/43 – 18/43 = 625/43; в) 10 – 13/20 = 920/20 – 13/20 = 97/20; г) 17 – 16/35 = 1635/35 – 16/35 = 1619/35.