First find the common denominator, which is 70. Then convert both fractions to the common denominator. Then add the numerators. Last, convert to simplist terms. 7/10-2/7=49/70-20/70=29/70 29/70 is already in simplist terms, so the answer is: 29/70.
seven tenths
Seven-and-one-sevenths!
20/21
5/70 or0.0857142857
Each time, you add one to the numerator and one to the denominator.
seven tenths
Seven-and-one-sevenths!
20/21
2.857142 repeating of them.
3/10
5/70 or0.0857142857
41 over 70
Less than.
Each time, you add one to the numerator and one to the denominator.
Seven thirteenths is a little over half of a whole and two sevenths is a bit more than a quarter of a whole.
one and a half i think
37/70 or .53 (rounded of course)