Do you mean what equals 220/640 in its lowerst terms
If so then it is 11/32
42
3 x 13
643
640 factors as follows:640/2320/2160/280/240/220/210/25640 via primes = 2 * 2 * 2* 2* 2 * 2 * 2 * 5 = 2^7 * 5
An acre is a measure of surface area = 220 * 22 = 4840 sq. yards 1 sq. mile = 640 acres, so 327 acres = 327/640 = 0.511 sq.miles
To convert the area from square miles to acres, multiply by 640 (since 1 square mile is equal to 640 acres). So, 220 miles x 40 miles equals 8,800 square miles, which is equivalent to 5,632,000 acres.
154 Sonnets of William Shakespeare
If all his animals were pigs, there'd be 880 legs, There are 240 legs missing which represents 120 chickens (so he has 220 - 120 ie 100 pigs.) Check: (120 x 2) + (100 x 4) = 240 + 400 = 640 QED
640
60% of 640= 60% * 640= 0.6 * 640= 384
30% of 640 = 30% * 640 = 0.3 * 640 = 192
48% of 640 = 48% * 640 = 0.48 * 640 = 307.2