(3 7/15 * 0,25 + 5/6 - 1 2/5) / (5,4 / (3/20 + 0,75)) =
(52/15 * 1/4 + 5/6 - 7/5 ) / (54/10 / (3/20 + 3/4)) =
(13/15 + 5/6 - 7/5) / (54/10 /(3/20 + 15/20)) =
(26/30 + 25/30 - 42/30) / (54/10 / 18/20) =
9/30 / 6 = 1/20
1.(3 35/45 - 2 39/45)=41/45
2.5/6+5/18=15/18+5/18=20/18=1 2/18=1 1/9
3.1 1/9- 41/45=1 5/45-41/45=50/45-41/45=9/45=1/5=0.2
-3+4,2-0,2=1 (это когда сложили дроби некоторые ну т.д.)
<span>2x-12*(3-x)=1+3*(x+2)
2х - 36 + 12х = 1 + 3х + 6
14х - 3х = 7 + 36
11х = 43
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