4/7
9/49
To find the highest common factor (HCF) of 245 and 140, we need to determine the largest number that divides both 245 and 140 without leaving a remainder. The factors of 245 are 1, 5, 7, 35, 49, and 245. The factors of 140 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, and 140. The common factors of 245 and 140 are 1, 5, and 35. Therefore, the highest common factor of 245 and 140 is 35.
That is it. The fraction does not reduce at all, since 140 and 297 have no common factors. ■
% rate = 175 = 245/240 * 100% = 1.75 * 100% = 175%
175/245 = (5*5*7)/(5*7*7) = 5/7
140 increased by 3/4 is 140*7/4 = 245
14/35 divided by 7/10 = 14/35 multiplied by 10/7 = 140/245 = 4/7
35, 70, 105, 140, 175, 210, 245, 280, 315 . . .
174 over 245 is already in lowest terms.
27 over 245 is already a fraction in its lowest terms.
35, 70, 105, 140, 175, 210, 245, 280.
175/245 = 5/7