Question

please answer this I have to submit this please friends​

Answer 1

Answer:

Hope it helps

Step-by-step explanation:

I think it is useful

Answer 2

Answer:

0.4

Step-by-step explanation:

l. c. m of 20,30,16 is 240

1. so, by lcm
2. $10 \times 12 + 12 \times 8 - 8 \times 15 \div 240$
3. $120 + 96 - 120 \div 240$
4. $216 - 120 \div 240$
5. $96 \div 240 = 0.4$

so the answer is 0.4.

I'll be happy if it is useful to you