Đáp án:
Giải thích các bước giải:
a, x - $\frac{11}{12}$ = $\frac{4}{9}$
x= $\frac{4}{9}$ + $\frac{11}{12}$
x= $\frac{49}{36}$
b, x - $\frac{-7}{15}$ = $\frac{5}{18}$
x = $\frac{5}{18}$ + $\frac{-7}{15}$
x= $\frac{-17}{90}$
c , x - $\frac{3}{16}$ = $\frac{-5}{10}$
x - $\frac{3}{16}$ = $\frac{-1}{2}$
x = $\frac{-1}{2}$ + $\frac{3}{16}$
x= $\frac{-5}{16}$
d, x - $\frac{1}{20}$ = $\frac{14}{3}$ + $\frac{5}{6}$
x - $\frac{1}{20}$ = $\frac{11}{2}$
x = $\frac{11}{2}$ + $\frac{1}{20}$
x= $\frac{111}{20}$
e, x - $\frac{11}{30}$ = $\frac{12}{7}$ + $\frac{-9}{14}$
x - $\frac{11}{30}$ = $\frac{15}{14}$
x = $\frac{15}{14}$ + $\frac{11}{30}$
x= $\frac{151}{105}$