Question

помогите мне решить дроби!!
5 3/4 + 2 1/6=
4 5/9-2 1/27=
7 3/5 - 2 1/8=
8 3/8+2 1/5=
4 3/7 + 2 1/4=

Answer 1

1) 5 3/4 + 2 1/6 = 5 9/12 + 2 2/12 = 7 11/12
2) 4 5/9 - 2 1/27 = 4 15/27 - 2 1/27 = 2 14/27
3) 7 3/5 - 2 1/8 = 7 24/40 - 2 5/40 = 5 19/40
4) 8 3/8 + 2 1/5 = 8 15/40 + 2 8/40 = 10 23/40
5) 4 3/7 + 2 1/4 = 4 12/28 + 2 7/28 = 6 19/28

Answer 2

5 3/4  +  2 1/6 = 23/4  +  13/6 =  (23 × 3  +  13 × 2)/12 = 69/12  +  26/12 =  95/12 = 7 11/12
4 5/9  -  2 1/27 = 41/9  -  55/27 = (41 × 3  -  55 × 1)/27 = 123/27 -  55/27 =  68/27 = 2 14/27
7 3/5  -  2 1/8 = 38/5  -  17/8 =(38 × 8  -  17 × 5)/40 = 304/40  -  85/40 =  219/40 = 5 19/40
8 3/8  +  2 1/5 = 67/8  +  11/5 =(67 × 5  +  11 × 8)/40 = 335/40  +  88/40 =  423/40 = 10 23/40
4 3/7  +  2 1/4 = 31/7  +  9/4 =(31 × 4  +  9 × 7)/28 = 124/28  +  63/28 =  187/28 = 6 19/28