How do you evaluate #37.8+ ( - 27.5) + ( - 26.8)#?

1 Answer
sankarankalyanam
Mar 16, 2018

As below.

Explanation:

#37.8 + (-27.5) + (-26.8)#

# => 37.8 - 27.5 - 26.8# Removing braces.

# => 37.8 - (27.5 + 26.8)# Combining negative terms together.

#color(white)(aaa aaa a) 27.5#
#color(white)(aaa aa) + 26.8#
#color(white)(aaa aaa a) --#
#color(white)(aaa aaa a) 54.3#
#color(white)(aaa aaa a) --#

# => 37.8 - 54.3#, From above, #27.5 + 26.8 = 54.3#

#color(white)(aaa aa) - 54.3#
#color(white)(aaa aaa aa) 37.8#
#color(white)(aaa aaa a)-- #
#color(white)(aaa aa) - 16.5#
#color(white)(aaa aaa a)--#
Hence the answer is #37.8 - 54.3 = color(blue)(- 16.5#

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