Question

Now im really going to fail

Subtract. −1 3/5 − ( −2 7/8 )

Answer 1

Answer:

${ \tt{ - 1 \frac{3}{5} - ( - 2 \frac{7}{8} )}}$

• first express the mixed fractions into improper fractions:

$\dashrightarrow \: { \tt{ - \frac{(5 \times 1) + 3}{5} - ( - \frac{(8 \times 2) + 7 }{8} )}} \\ \\ \dashrightarrow \: { \tt{ - \frac{8}{5} - ( - \frac{23}{8} )}}$

• open the bracket:

$\dashrightarrow \: { \tt{ - \frac{8}{5} + \frac{23}{8} }} \\ \\ \dashrightarrow \: { \tt{ \frac{23}{8} - \frac{8}{5} }}$

• then subtract:

$\dashrightarrow \: { \boxed{ \tt{ \: 1 \frac{11}{40} }}}$