103/4 - 71/4 = 31/2
it is 1000 taking away 200 4 times
One and three quarters
Add up the three angles and subtract that from 360.
Six and two fifths.
three eighths
Zero, one fourth, three fifths and seven tenths.
Subtract the (sum of the other three angles) from 360.
9/12 - 8/12 = 1/12
-1/2
It is seven and three eighths
three sixteenths
The expected date of delivery is an estimated date. In order to come up with the date you add one year, subtract three months then add seven days to the last day of your menstrual cycle.