-3/4 < -7/10 < 3/4 < 8/10
I figured this out by dividing the numerator by the denominator to get a percentage. So
-3 divided by 4 = -75%
-7 divided by 10 = -70%
3 divided by 4 = 75%
and 8 divided by 10 = 80%
Converting to percentages really helps a lot with fraction, especially when ordering them from least to greatest :)
Hope this helps :)