Question

simplify and express the result as a rational number in its lowest term 0.144÷1.2/0.016÷0.02+7/5-21/8 please answer​

Answer 1

Answer:-34/40

Step-by-step explanation: 144/1000÷12/10÷16/1000÷2/100+7/5-21/8

144/1000×10/12×100/2×1000/16+7/5-2/8

3/8+7/5-21/8

15/40+56/40-21/8

71/40-105/40

-34/40