Объяснение:
А)4 3/8-(3 5/7-1 5/7)= 2 3/8
3 5/7-1 5/7=2
4 3/8-2=2 3/8
Б)12 7/12 -4 5/12-(20 3/4-19 3/4)= 7 1/6
20 3/4-19 3/4=1
12 7/12-4 5/12=8 2/12=8 1/6
8 1/6-1=7 1/6
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Verified answer
Объяснение:
А)4 3/8-(3 5/7-1 5/7)= 2 3/8
3 5/7-1 5/7=2
4 3/8-2=2 3/8
Б)12 7/12 -4 5/12-(20 3/4-19 3/4)= 7 1/6
20 3/4-19 3/4=1
12 7/12-4 5/12=8 2/12=8 1/6
8 1/6-1=7 1/6