70 and 80, yes.
12, no.
LCD(70, 80) = 560
560
560
1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560
12
70 / 80 To go from 7 / 8 to x / 80, you would multiply the numerator and the denominator by 10. You can also find this using cross multiplication. 7 / 8 and x / 80 8x = 560 x = 560 / 8 x = 70
7 times 80 is equal to 560.
The GCF is 2.
The GCF is 10.
7
Well first of all you can use a calculator and second of all, all the 80's are 560 and all the 80's + 560 is 1,120 there is your answer.
10