1)
5/6 7/9 = (57) / (6*9) = 35 / 54
11/28 7/33 = (117) / (28*33) = 77 / 924 = 7 / 84
1 8/25 1 4/13 = (25+8) / 25 (13+4) / 13 = 33 / 25 * 17 / 13 = 561 / 325
3 5/7 1 1/13 = (73 + 5) / 7 (131 + 1) / 13 = 26 / 7 * 14 / 13 = 364 / 91 = 4
2)
1 5/19 (6 - 3 5/8) = 24 / 19 (48/8 - 29/8) = 24 / 19 * 19/8 = 3
1,8 (6,3 1,4 - 2,05) = 1.8 (8.82 - 2.05) = 1.8 6.77 = 12.186
1)
5/6 7/9 = (57) / (6*9) = 35 / 54
11/28 7/33 = (117) / (28*33) = 77 / 924 = 7 / 84
1 8/25 1 4/13 = (25+8) / 25 (13+4) / 13 = 33 / 25 * 17 / 13 = 561 / 325
3 5/7 1 1/13 = (73 + 5) / 7 (131 + 1) / 13 = 26 / 7 * 14 / 13 = 364 / 91 = 4
2)
1 5/19 (6 - 3 5/8) = 24 / 19 (48/8 - 29/8) = 24 / 19 * 19/8 = 3
1,8 (6,3 1,4 - 2,05) = 1.8 (8.82 - 2.05) = 1.8 6.77 = 12.186