a) 1/4-(1-11/12) в6 3/16-(2 3/8+3 5/12)
б) 2-(13/33-5/22) г 8 1/12-3 4/15-17/30
д)(13-8 5/12)+(17 1/2-16 1/5)
е)(63 2/3+3 1/8)-(13-10 5/9)
ж(15 1/2-2 3/8)-(5 5/6+6 3/4)+(10 2/3-5 5/8)
з (20-19 3/4)+17 3/4-17)+(2 1/2-17/24)
б) 2-(13/33-5/22) г 8 1/12-3 4/15-17/30
д)(13-8 5/12)+(17 1/2-16 1/5)
е)(63 2/3+3 1/8)-(13-10 5/9)
ж(15 1/2-2 3/8)-(5 5/6+6 3/4)+(10 2/3-5 5/8)
з (20-19 3/4)+17 3/4-17)+(2 1/2-17/24)
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Ответ:
1/4 - ( 1 - 11/12) = 1/4 - 1/12 = 2/12 = 1/6
2 - (13/33 - 5/22) = 2 - 11/66 = 2 - 1/6 = 5/6
6 3/16 - (2 3/8 + 3 5/12) = 99/16 -(19/8 + 41/12) =99/16 - (-25/24) = 99/16 + 25/24 = 247/48 = 5 7/48