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    				| 1. | Using repeated subtracting method find HCF of the following:36 and 80 | 
| Answer» 36 and 80 36 and 80 m = 80, n = 36 80 – 36 = 44, now n = 44, m = 36 Since n > m, we should do n m 44 – 36 = 8, now n = 8, m = 36 36 – 8 = 28 Similarly, processing, proceeding, we do repeated subtraction till m = n 28 – 8 = 20 20 – 8 = 12 12 – 8 = 4 8 – 4 = 4 now m = n = 4 ∴ HCF is 4 | |