Մաթեմատիկա 13․05․2021

1029.
(3 1/2 : 4 2/3 + 4 2/3 : 33 1/2)x 4 4/5=

1) 3 1/2 : 4 2/3=3/7
2) 4 2/3 : 3 1/2=3/7
3) 3/7 + 3/7= 6/14
4) 4 4/5 x 6/14 = 54/30
3 1/8 : (( 4 5/12 – 3 13/24) x 4/7 + (3 1/18 – 2 7/12)x 1 10/17=170/130,

1) 4 5/7 – 1 11/14 = 6/7
2) 3 1/18 – 2 7/12 =6/6
3)6/7 x 4/7 = 28/42
4) 6/6+4/7=10/13
10/13 x 1 10/17 = 170/130
28/42:3 1/8=224/42

2 34:(( 4 5/7 – 1 11/14) x 4 2/3 + (3 2/9 – 1 5/6) x 18/15)=200/90,84/12

1) 4 5/7 – 1 11/14=7/2
2) 3 2/9 – 1 5/6 = 7/1
3)7/2 x 4 2/3 = 21/4
4)7/1+4 2/3 = 8/5
5)21/4: 2 3/4=84/12
6)8/5 x 18/25= 200/90

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