1) 13/24 - 7/16 = (134)/(244) - (73)/(163)= 52/96 - 21/48 = (52-42)/96 = 10/96 = 5/48
2) 1 4/15 + 3 7/25 = 1 + 3 + 4/15 + 7/25= 4 + 7 + (45)/(155) + (73)/(253)= 11 + 11/75 + 21/75 = 22 + 32/75 = 22 32/75
3) 9 11/12 - 5 3/8 = 9 - 5 + 11/12 - 3/8= 4 + 11/12 - 3/8 = 4 + (112)/(122) - (33)/(83)= 4 + 22/24 - 9/24 = 4 + (22-9)/24 = 4 + 13/24 = 4 13/24
Итак, результаты:1) 5/482) 22 32/753) 4 13/24
1) 13/24 - 7/16 = (134)/(244) - (73)/(163)
= 52/96 - 21/48 = (52-42)/96 = 10/96 = 5/48
2) 1 4/15 + 3 7/25 = 1 + 3 + 4/15 + 7/25
= 4 + 7 + (45)/(155) + (73)/(253)
= 11 + 11/75 + 21/75 = 22 + 32/75 = 22 32/75
3) 9 11/12 - 5 3/8 = 9 - 5 + 11/12 - 3/8
= 4 + 11/12 - 3/8 = 4 + (112)/(122) - (33)/(83)
= 4 + 22/24 - 9/24 = 4 + (22-9)/24 = 4 + 13/24 = 4 13/24
Итак, результаты:
1) 5/48
2) 22 32/75
3) 4 13/24