What is #4.15 * 1.8#?

Question

821 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-04T05:14:37

#7.47#

#4.15 xx 1.8#

Split them into parts

#=> (4+0.15)xx(1+0.8)#

Now multiply individually

#=> 4(1+0.8) + 0.15(1+0.8)#

#=> 4 + 3.2 + 0.15 + 0.12#

#=> 7.2+0.27#

#=> 7.47#