To simplify the expression, we first distribute the factors:
2/9(1.8m - 5.4) - 3/7(2.1m - 4.2)
= 2/9 1.8m - 2/9 5.4 - 3/7 2.1m + 3/7 4.2
Next, we simplify the terms:
= 0.4m - 1.2 - 0.9m + 1.8
Now, we combine like terms:
= -0.5m + 0.6
Therefore, 2/9(1.8m-5.4) - 3/7(2.1m-4.2) simplifies to -0.5m + 0.6.
To simplify the expression, we first distribute the factors:
2/9(1.8m - 5.4) - 3/7(2.1m - 4.2)
= 2/9 1.8m - 2/9 5.4 - 3/7 2.1m + 3/7 4.2
Next, we simplify the terms:
= 0.4m - 1.2 - 0.9m + 1.8
Now, we combine like terms:
= -0.5m + 0.6
Therefore, 2/9(1.8m-5.4) - 3/7(2.1m-4.2) simplifies to -0.5m + 0.6.