Question

What is 6 + (-4 3/4) + (-2 1/8)=7/8

Answer 1

Conversion a mixed number -4 3/
4
to a improper fraction: -4 3/4 = -4 3/
4
= -4 · 4 + (-3)/4
= -16 + (-3)/4
= -19/4
Add: 6 + (-19/4)= 6/1
+ (-19/4) = 6 · 4/1 · 4
+ (-19)/4
= 24/4+ (-19/4)=24 + (-19)/4
= 5/4

2 1/8 = -2 1/8
= -2 · 8 + (-1)/8
= -16 + (-1)/8
= -17/8
Add: the result of step No.
2 + (-17/8) = 5/4+ (-17/8) = 5 · 2/4 · 2+ (-17)/8= 10/8+ (-17/8) = 10 + (-17)/8= -7/8