You can simplify by factoring. All of those numbers have "3" as a factor, so divide everything by three to get:
n over 5 equals 7 over 4.
60
For 12, 15 and 28 the LCM is: 420
3
Twenty five times twelve equals 300.
ten to twenty or ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, and twenty.
The sum is 12.00-2.40 which equals 9.60
fifteen out of twenty = 3/4
Fifteen times seventeen equals two-hundred and twenty five.
Nine hundred twenty six minus four hundred fourteen equals six hundred twelve. This would be the right way to spell 926-414=612 in word form.
(1/10) * 20 = 2(6/10) * 20 = 6 * 2= 12six tenths of twenty equals twelve.
The sum of twenty-five and fifteen = 25 + 15 = 40
Not sure what twelth-twenty fifths means but twelve twenty-fifths is 48%.