Question

603. Найдите значение произведения а) 3⅜×2, б) 10⅜×9, в) 12⅜×5, г) 11⅜×10.

Answer 1

а) 27/8 * 2= 27 * 2/8 =27/4=6¾

б) 83/8 * 9= 83 * 9/8=747/8=93⅜

в) 99/8 * 5= 99 * 5/8=495/8=61⅞

г) 91/8 * 10= 91 * 10/8= 91 * 5/4= 455/4=113¾

Answer 2

а) 3 3/8 · 2 = 3 · 2 + 3/8 · 2 = 6 + 3/4 = 6 целых 3/4;

б) 10 3/8 · 9 = 10 · 9 + 3/8 · 9 = 90 + 27/8 = 90 + 3 3/8 = 93 целых 3/8;

в) 12 3/8 · 5 = 12 · 5 + 3/8 · 5 = 60 + 15/8 = 60 + 1 7/8 = 61 целая 7/8;

г) 11 3/8 · 10 = 11 · 10 + 3/8 · 10 = 110 + 15/4 = 110 + 3 3/4 = 113 целых 3/4.