Answer:
Rewriting our equation with parts separated
=1+3/4−2−7/10=1+3/4−2−7/10
Solving the whole number parts
1−2=−11−2=−1
Solving the fraction parts
3/4−7/10=?
Find the LCD of 3/4 and 7/10 and rewrite to solve with the equivalent fractions.
LCD = 20
15/20−14/20=1/20 15/20−14/20=1/20
Combining the whole and fraction parts
−1+1/20=−19/20
