a) Simplifying the expression:
2/7x - 4/9y - 9.2m + 15m= 2/7x - 4/9y - 24.2m + 15m= 2/7x - 4/9y - 9.2m
b) Simplifying the expression:
0.5a - 2/3b - 2/5a - 1/3b= 0.5a - 2/3b - 0.4a - 1/3b= 0.1a - 3/3b= 0.1a - b
a) Simplifying the expression:
2/7x - 4/9y - 9.2m + 15m
= 2/7x - 4/9y - 24.2m + 15m
= 2/7x - 4/9y - 9.2m
b) Simplifying the expression:
0.5a - 2/3b - 2/5a - 1/3b
= 0.5a - 2/3b - 0.4a - 1/3b
= 0.1a - 3/3b
= 0.1a - b