Operations with fractions
3/4 . 2/5
3/10
2/10
0.2
0,34
34/100
3/10=9/x
X=30
3.12-0.7x0.2
2.98
2/7+4/5
38/35
7/9
0.7777…
0,23
23/99
6/15=x/5
x=2
0,2+1.3
20/9
7+3/4-1/5-3/2
121/20
12/13
0.92307…
0.34
31/90
60/x=12/13
x=65
3.56-1.24
209/90
(7/8-3):5/6
-51/20
51/83
0.614457…
9,567
9472/990
8/14=20/x
x=35
6.7+3.3x0.2
203/27
A third of the 240 passengers of a plane is European and ½ are Africans. The rest of them are Americans. How many Americans are on the plane?
200
14/16
0.875
0,9932
9833/9900
15/25=x/5
x=3
Write the rational number 6,8 as the sum of two recurring decimals.
3.34+3.34