X = p/q and q=0 (q is in the form of 2 and 5 Wherem n are non negative integers , then it is terminating decimal) 3/22*5 = 0.15

x = p/qand q*0(a is not in theform of2*5*where m, n arenon-negativeintegers, thenit isnon- terminatingdecimal)e 910 - 3.3

Given positive integers aand b there exist uniqueintegers q and r satisfyinga = ba = r Oar

If 'a' and "b'are positiveintegers such that a = bq + P,then every common divisorof 'a and "b' is a commondivisor of "b' and 'r', andvice-versa.e.g. HCF of 420 & 48420 = 48 × 8 + 3648 = 36 x1 + 1236 = 12 × 3 + 0- H.C.F, of 420 & 48 is 12

Every composite numbercan be expressed orfactorized as a product ofprimeseg. 48 = 2 x 2* 2 * 2.420 = 2 * 2 y 3 * 5*7