Question

Решите пожалуйста 1 и 2

Answer 1

....
..

.
ном.1
1) 3.25 + 2. 1/6 = 325/100+13/6=975/300+650/300=1625/300=5.5/12
2) 5.5/12/2.6=(65/12)/(26/10)=65/12*10/26=625/312=2.1/12
3) 5.1/6+2.1/12=31/6+25/12=62/12+25/12=87/12=7.25
4) 2/3*2.25=2/3*225/100=1*75/50=1.5
5) 7.25-1.5=5.75

Answer 2

1)))))

1. 3,25 + 2 1/6 = 3 1/4 + 2 1/6 = 3 3/12 + 2 2/12 = 5 5/12
2. 5 7/12 : 2,6 = 65/12 * 10/26 = 25/12 = 2 1/12
3. 2/3 * 2,25 = 2/3 * 225/100 = 3/2 = 1,5
4. 5 1/6 + 2 1/12 = 5 2/12 + 2 1/12 = 7 3,/12 = 7 1/4
5. 7 1/4 - 1 1/2 = 7 1/4 - 1 /24 = 6 5/4 - 1 2/4 = 5 3/4 = 5,75