I have no idea what you did.
-4/7 -7/20
common denominator: 140
(-80-49)/140=-129/140
add the following
- 4/7 + [ -7/20]
7*20= 140
so -60/140 + - 49/140= 11/140?
2 answers
thank you
I see my error
I multiplied 4 *20 and instead of writing 80 I wrote 60, which threw off the rest of the equation. Thanks
I see my error
I multiplied 4 *20 and instead of writing 80 I wrote 60, which threw off the rest of the equation. Thanks