Question

Now im really going to fail

Subtract. −1 3/5 − ( −2 7/8 )

Answer 1

`{ \tt{ - 1 (3)/(5) - ( - 2 (7)/(8) )}}`

• first express the mixed fractions into improper fractions:

`\dashrightarrow \: { \tt{ - ((5 * 1) + 3)/(5) - ( - ((8 * 2) + 7 )/(8) )}} \\ \\ \dashrightarrow \: { \tt{ - (8)/(5) - ( - (23)/(8) )}}`

• open the bracket:

`\dashrightarrow \: { \tt{ - (8)/(5) + (23)/(8) }} \\ \\ \dashrightarrow \: { \tt{ (23)/(8) - (8)/(5) }}`

• then subtract:

`\dashrightarrow \: { \boxed{ \tt{ \: 1 (11)/(40) }}}`