write the following rational numbers with positive denominator
-21/-25
-26/-45
-9/-7
-38/-42
- -21/-25 = -21/-25 * -1/-1 = 21/25
- -26/-45 = -26/-45 * -1/-1 = 26/45
- -9/-7 = -9/-7 * -1/-1 = 9/7
- -38/-42 = -38/-42 * -1/-1 = 38/42
write the following rational numbers with positive denominator
-21/-25
-26/-45
-9/-7
-38/-42