Ответ:
2/14 = 1/7; НОК(8, 7) = 56: 7/8 + 1/7 = 49/56 + 8/56 = 57/56 = 1 1/56.
НОК(15, 44) = 660: 2/15 + 3/44 = 88/660 + 45/660 = 133/660.
5/30 = 1/6: 1/12 − 1/6 = 1/12 − 2/12 = −1/12.
0,35 = 7/20; НОК(30, 20) = 60: 11/30 − 7/20 = 22/60 − 21/60 = 1/60.
