We are comparing milligrams and grams. We need to convert grams to milligrams and then compare both.
7/10 in decimal is 0.7
So,
0.7 grams
compared with 869 milligrams
Converting grams to milligrams (1000 milligrams = 1 gram):
Thus, we are comparing
869 milligrams & 700 milligrams
Of course,
869 milligrams > 700 milligrams
or
869 milligrams > 7/10 gram