Answer:
4. 7/100
5. -3 85/99
6. 26/33
7. 2 27/50
Explanation:
4.
0.07 = 7/100
5.
We need to change 0.8585... into a fraction.
100x = 85.8585...
(-) x = 0.8585...
-----------------------------
99x = 85
x = 85/99
-3.858585... = -3 85/99
6.
100x = 78.7878...
(-) x = 0.7878...
------------------------------
99x = 78
x = 78/99
x = 26/33
0.787878... = 26/33
7.
2.54 = 2 + 0.54 = 2 + 54/100 = 2 + 27/50 = 2 27/50