23 2/5+х=4 5/6+21 1/6

х+19 3/7=5 7/12 + 16 5/12

х+6 1/4=17 2/3-5 2/3

4 3/8+х=21 2/5-12 2/5

решите уравнения

23 2/5+х=4 5/6+21 1/6

х = (29/6+127/6) - 117/5

х=78/3-117/5

х=390/15-351/15

х=39/15=13/5=2 3/5

х+19 3/7=5 7/12 + 16 5/12

х = (67/12+197/12) - 136/7

х = 264/12-136/7

х = 22-136/7

х = 154/7-136/7

х=18/7

х+6 1/4=17 2/3-5 2/3

х = 12-25/4

х=48/4-25/4

х=23/4=5 3/4

4 3/8+х=21 2/5-12 2/5

х = 9 - 35/8

х = 72/8-35/8

х = 37/8 = 4 5/8